Closing and reopening questions is a very small part of what goes on around this network... But it gets a lot of attention, and always has. Particularly over the past year, as we've tested some pretty significant changes, with successful releases on both Stack Overflow and the network as a whole. We hope to continue evolving and refining this system in the new year, so it's worth keeping an eye on how we're all using this system.
So, for the fourth year in a row, I present for your amusement, entertainment and education... A grey table containing numbers reflecting how many questions were closed on various sites around the network in 2019:
Site Asked AskedAndClosed PctAskedAndClosed AllClosed DuplicatesClosed DuplicatesReopened OTClosed OTReopened UnclearClosed UnclearReopened TooBroadClosed TooBroadReopened OpinionBasedClosed OpinionBasedReopened
------------------------------------ --------- -------------- ----------------- --------- ---------------- ------------------ -------- ---------- ------------- --------------- -------------- ---------------- ------------------ --------------------
Stack Overflow 2,717,332 320,314 11.79 % 340,072 138,952 5,401 79,169 1,643 44,058 1,342 67,314 1,152 10,579 150
Super User 72,297 12,881 17.82 % 13,188 1,128 43 6,972 106 2,133 79 2,629 72 326 7
Server Fault 26,750 5,127 19.17 % 5,368 509 14 3,754 79 717 59 308 7 80 2
Stack Apps 223 75 33.63 % 126 19 0 100 8 1 0 0 0 0 0
Seasoned Advice 2,377 476 20.03 % 499 204 5 133 5 71 3 52 3 39 2
Home Improvement 9,539 627 6.57 % 696 110 3 395 2 89 1 64 0 38 0
Game Development 5,735 892 15.55 % 957 158 4 462 23 98 7 169 10 70 3
Arqade 7,344 2,075 28.25 % 2,657 1,076 16 710 23 526 32 260 12 85 4
GIS 20,679 5,180 25.05 % 6,002 793 30 2,259 221 1,318 159 1,432 190 200 7
Mathematics 206,635 31,674 15.33 % 34,162 8,776 230 20,595 611 4,043 146 484 14 264 6
Photography 2,548 649 25.47 % 671 249 13 262 2 102 4 36 2 22 1
Cross Validated 34,871 8,651 24.81 % 9,591 1,534 48 4,004 182 3,356 399 620 50 77 5
Web Applications 5,746 1,238 21.55 % 1,368 218 2 698 3 302 11 121 1 29 0
Webmasters 3,790 1,424 37.57 % 1,448 320 11 593 28 247 55 196 29 92 2
Ask Different 14,028 2,294 16.35 % 2,458 884 61 621 55 635 132 223 39 95 11
Theoretical Computer Science 1,289 253 19.63 % 258 7 1 223 4 19 0 8 0 1 0
English Language & Usage 17,998 7,750 43.06 % 8,063 1,155 19 5,165 82 966 34 202 6 575 9
Money 5,106 955 18.70 % 1,014 241 11 536 17 113 10 52 1 72 2
RPG 6,958 1,984 28.51 % 2,076 638 140 182 34 662 310 291 100 303 81
TeX - LaTeX 25,433 3,582 14.08 % 4,137 1,864 91 1,090 27 969 25 156 13 58 2
Ask Ubuntu 51,130 9,698 18.97 % 10,478 4,950 89 3,379 65 1,693 69 249 6 207 9
Unix & Linux 30,934 4,817 15.57 % 5,077 1,540 64 995 16 1,575 56 767 17 200 7
WordPress Development 17,085 3,143 18.40 % 3,287 126 3 2,678 6 202 4 252 2 29 0
Bicycles 1,916 301 15.71 % 316 101 1 125 5 55 2 18 1 17 0
Software Engineering 8,937 4,327 48.42 % 4,482 150 5 2,243 16 433 17 1,314 37 342 18
Android Enthusiasts 7,279 1,823 25.04 % 1,937 408 11 1,187 44 252 21 60 3 30 1
Board & Card Games 1,555 262 16.85 % 292 133 12 45 1 44 6 33 3 37 4
Physics 33,186 10,181 30.68 % 10,534 2,066 48 5,690 35 1,912 35 564 33 302 1
Homebrewing 265 7 2.64 % 10 5 0 4 0 1 0 0 0 0 0
Information Security 9,898 3,736 37.74 % 3,835 600 8 2,099 27 516 13 484 9 136 4
Writing 2,002 512 25.57 % 532 96 3 298 22 43 2 55 3 40 4
Electrical Engineering 25,688 5,932 23.09 % 6,177 551 8 2,467 49 1,665 60 1,324 25 170 2
Graphic Design 5,966 896 15.02 % 929 225 5 346 7 134 7 172 3 52 1
DBA 14,016 3,055 21.80 % 3,528 372 14 1,263 10 1,215 36 554 4 124 2
Science Fiction & Fantasy 7,331 1,690 23.05 % 1,873 844 55 380 59 216 43 175 38 258 48
Area 51 Discussions 282 63 22.34 % 66 29 1 34 1 3 0 0 0 0 0
Code Review 10,976 3,178 28.95 % 3,290 21 1 2,979 104 258 17 14 0 18 0
Code Golf 1,265 512 40.47 % 535 93 17 243 20 184 49 15 0 0 0
Quantitative Finance 3,312 515 15.55 % 523 55 0 261 5 112 2 64 3 31 0
Project Management 788 211 26.78 % 234 6 0 107 2 37 2 34 0 50 3
Skeptics 975 341 34.97 % 345 36 1 202 10 72 24 12 3 23 3
Drupal Answers 7,628 1,745 22.88 % 2,391 203 5 557 11 605 8 934 10 92 3
Physical Fitness 837 252 30.11 % 266 43 2 190 9 11 3 12 0 10 1
Motor Vehicles 3,979 337 8.47 % 349 61 0 120 3 98 1 34 1 36 0
Parenting 531 193 36.35 % 203 17 0 78 8 49 2 31 5 28 2
SharePoint 8,594 522 6.07 % 556 44 1 186 1 220 17 86 7 20 0
Music 3,933 1,015 25.81 % 1,103 201 9 477 7 144 6 116 2 165 2
Software Quality Assurance & Testing 1,896 389 20.52 % 416 48 1 132 1 140 4 71 4 25 3
Mi Yodeya 4,540 991 21.83 % 1,090 444 15 356 39 185 46 65 16 40 4
Astronomy 2,046 372 18.18 % 379 110 2 135 11 88 2 26 1 20 0
German Language 1,968 454 23.07 % 465 89 4 261 28 64 13 35 1 16 2
Japanese Language 3,392 705 20.78 % 713 251 10 406 8 28 4 8 1 20 0
Gardening & Landscaping 2,153 88 4.09 % 91 11 0 39 2 25 3 13 3 3 1
Philosophy 2,841 774 27.24 % 796 54 2 371 11 179 4 79 2 113 3
Travel 8,665 3,542 40.88 % 3,706 1,421 38 1,040 81 729 57 184 12 332 19
Cryptography 4,438 1,289 29.04 % 1,382 259 7 756 21 221 13 123 9 23 1
Literature 841 140 16.65 % 142 11 0 77 6 15 3 23 3 16 0
Signal Processing 4,095 594 14.51 % 601 49 1 204 3 212 9 121 1 15 0
French Language 1,731 183 10.57 % 185 70 2 62 4 19 4 22 1 12 1
Christianity 1,480 526 35.54 % 546 74 12 264 12 76 4 42 0 90 5
Bitcoin 3,854 810 21.02 % 1,060 172 4 698 2 107 2 50 1 33 0
Linguistics 1,659 483 29.11 % 495 26 2 342 9 69 1 36 2 22 0
Biblical Hermeneutics 1,381 246 17.81 % 261 40 0 152 5 37 2 10 1 22 1
Economics 2,906 567 19.51 % 581 32 0 362 0 122 0 49 0 16 0
History 2,228 684 30.70 % 691 20 0 357 17 109 10 136 7 69 2
Bricks 482 36 7.47 % 38 17 0 8 0 5 0 7 0 1 0
Spanish Language 1,109 146 13.17 % 151 66 2 60 6 15 0 7 0 3 0
Computational Science 1,338 164 12.26 % 204 11 0 107 2 74 0 12 0 0 0
Movies & TV 3,371 1,033 30.64 % 1,054 181 9 535 22 111 19 76 10 151 14
Chinese Language 1,238 79 6.38 % 83 17 1 59 0 7 2 0 0 0 0
Biology 4,249 1,130 26.59 % 1,188 140 3 629 16 212 3 100 1 107 2
Poker 222 55 24.77 % 57 36 0 11 0 8 1 2 0 0 0
Mathematica 10,381 2,217 21.36 % 2,313 459 9 1,595 33 216 10 36 3 7 3
Psychology & Neuroscience 1,367 448 32.77 % 459 34 0 266 10 58 6 49 1 52 5
The Great Outdoors 592 78 13.18 % 80 22 2 31 3 11 1 9 4 7 0
Martial Arts 229 33 14.41 % 38 9 0 13 0 6 0 3 0 7 0
Sports 767 275 35.85 % 287 44 1 150 0 29 0 31 0 33 0
Academia 6,244 2,292 36.71 % 2,354 343 4 1,483 31 268 6 110 5 150 10
Computer Science 8,271 1,838 22.22 % 1,883 328 6 835 13 555 25 114 4 51 1
The Workplace 5,247 1,813 34.55 % 1,831 279 27 827 66 244 18 268 20 213 25
Windows Phone 60 17 28.33 % 17 5 0 9 0 2 0 0 0 1 0
Chemistry 9,389 4,839 51.54 % 4,953 464 7 2,666 136 1,167 71 568 25 88 3
Chess 894 171 19.13 % 205 56 5 59 4 15 2 25 2 50 1
Raspberry Pi 5,969 731 12.25 % 780 113 1 267 4 248 34 122 4 30 1
Russian Language 607 133 21.91 % 136 13 1 89 8 22 7 11 2 1 0
Islam 2,340 610 26.07 % 695 220 1 174 1 180 2 59 1 62 0
Salesforce 21,931 3,798 17.32 % 3,879 880 15 1,505 20 878 11 521 9 95 1
Ask Patents 398 57 14.32 % 57 8 0 44 2 5 0 0 0 0 0
UX 2,514 631 25.10 % 667 61 0 272 2 79 1 85 1 170 1
Genealogy & Family History 484 86 17.77 % 96 50 0 14 2 14 0 16 0 2 0
Robotics 1,067 180 16.87 % 192 14 1 35 1 50 11 32 2 61 3
ExpressionEngine® Answers 404 8 1.98 % 8 0 0 6 0 2 0 0 0 0 0
Politics 3,362 1,096 32.60 % 1,138 140 10 541 101 179 25 102 9 176 34
Video Production 1,388 60 4.32 % 64 10 0 30 0 7 0 12 0 5 0
Anime & Manga 1,697 496 29.23 % 504 78 2 296 4 52 1 16 1 62 0
Magento 20,532 937 4.56 % 993 212 10 311 6 268 13 159 7 43 3
English Language Learners 16,793 2,306 13.73 % 2,415 356 10 1,561 108 203 17 166 8 129 1
Sustainable Living 236 32 13.56 % 35 6 0 11 0 7 0 9 0 2 0
Tridion 434 1 0.23 % 1 1 1 0 0 0 0 0 0 0 0
Reverse Engineering 1,437 235 16.35 % 241 15 1 109 1 70 0 37 0 10 0
Arduino 5,358 1,352 25.23 % 1,388 173 0 460 12 450 15 287 1 18 0
Network Engineering 4,620 2,885 62.45 % 3,169 178 6 2,231 18 91 8 619 42 50 2
Open Data 730 72 9.86 % 80 30 2 35 3 15 0 0 0 0 0
Freelancing 214 65 30.37 % 65 7 0 14 0 2 0 32 0 10 0
Blender 19,177 2,389 12.46 % 2,526 1,431 51 448 8 388 25 130 6 129 0
MathOverflow 16,523 3,103 18.78 % 3,144 66 4 2,710 21 287 3 57 0 24 1
Space Exploration 2,909 375 12.89 % 383 124 7 119 21 60 9 52 8 28 4
Sound Design 630 148 23.49 % 167 11 0 123 2 14 1 9 1 10 0
Tor 803 64 7.97 % 81 29 0 13 0 37 0 2 0 0 0
Pets 947 201 21.22 % 209 140 2 34 1 25 0 6 0 4 1
Amateur Radio 995 98 9.85 % 99 15 1 37 6 28 8 11 2 8 8
Italian Language 512 25 4.88 % 25 11 2 10 1 2 0 0 0 2 0
Stack Overflow em Português 42,298 15,973 37.76 % 16,620 1,583 53 9,713 262 4,359 113 789 18 176 2
Aviation 4,132 1,111 26.89 % 1,147 296 14 332 32 224 43 179 9 116 8
Ebooks 173 16 9.25 % 16 1 0 13 0 1 0 0 0 1 0
Beer, Wine & Spirits 88 16 18.18 % 17 2 0 3 0 1 0 5 0 6 0
Software Recommendations 12,465 4,477 35.92 % 4,487 26 3 3,712 49 493 75 233 24 23 0
CS50 1,119 35 3.13 % 41 18 1 7 0 12 1 2 0 2 0
Expatriates 1,214 94 7.74 % 99 22 0 21 0 23 1 16 0 17 0
Mathematics Educators 413 105 25.42 % 115 6 0 70 1 19 0 12 1 8 0
Earth Science 1,444 555 38.43 % 904 29 3 773 12 60 1 29 0 13 0
Joomla 713 50 7.01 % 69 11 0 22 2 14 0 20 2 2 0
Data Science 11,298 1,503 13.30 % 1,525 54 0 581 3 328 16 477 6 85 0
Puzzling 4,043 698 17.26 % 708 135 12 433 43 74 7 55 4 11 0
Craft CMS 1,762 22 1.25 % 22 6 0 11 0 3 0 2 0 0 0
Buddhism 1,069 108 10.10 % 109 26 4 33 2 30 7 3 1 17 0
Hinduism 2,735 573 20.95 % 590 273 15 163 5 38 8 29 2 87 11
Community Building 86 15 17.44 % 19 0 0 13 0 2 0 3 0 1 0
Worldbuilding 5,197 1,657 31.88 % 1,690 175 16 500 20 244 27 485 52 286 16
スタック・オーバーフロー 4,993 168 3.36 % 170 18 0 84 14 46 3 16 0 6 0
Emacs 3,380 180 5.33 % 205 95 4 36 1 48 8 21 3 5 0
History of Science and Mathematics 508 57 11.22 % 57 14 0 26 1 8 0 5 0 4 0
Lifehacks 458 139 30.35 % 145 17 0 120 2 6 0 1 0 1 0
Engineering 2,751 458 16.65 % 463 19 0 129 3 162 17 132 5 21 0
Coffee 137 7 5.11 % 7 2 0 2 0 2 0 0 0 1 0
Vi and Vim 1,771 143 8.07 % 152 77 1 43 1 22 1 8 0 2 0
Music Fans 663 117 17.65 % 176 13 2 122 1 10 0 10 0 21 0
Woodworking 430 34 7.91 % 35 8 0 14 1 5 1 8 0 0 0
CiviCRM 2,064 22 1.07 % 23 18 0 3 0 2 0 0 0 0 0
Medical Sciences 1,612 823 51.05 % 924 19 0 773 25 58 2 33 3 41 1
Stack Overflow на русском 78,086 12,057 15.44 % 12,479 1,798 45 5,128 188 3,497 88 1,107 29 949 7
Русский язык 3,179 307 9.66 % 318 48 1 143 6 68 7 25 3 34 1
Mythology & Folklore 237 27 11.39 % 28 5 0 11 0 3 0 7 0 2 0
Law 4,722 715 15.14 % 747 104 3 418 19 113 7 89 5 23 2
Open Source 676 103 15.24 % 103 32 0 48 1 13 0 3 0 7 0
elementary OS 1,575 124 7.87 % 343 93 4 225 11 17 0 6 0 2 0
Portuguese Language 236 16 6.78 % 16 4 0 7 0 2 1 3 0 0 0
Computer Graphics 597 37 6.20 % 37 0 0 25 0 10 1 1 0 1 0
Hardware Recommendations 1,708 848 49.65 % 863 5 0 711 7 37 1 92 1 18 0
Stack Overflow en español 49,704 7,127 14.34 % 7,478 819 13 2,585 101 1,508 42 1,462 28 1,104 15
3D Printing 1,078 118 10.95 % 121 35 5 39 1 30 5 8 0 9 0
Ethereum 6,134 789 12.86 % 834 212 1 217 1 232 3 137 0 36 1
Latin Language 859 33 3.84 % 34 8 0 15 0 7 0 3 0 1 0
Language Learning 258 89 34.50 % 89 2 0 63 1 7 3 9 1 8 2
Retrocomputing 944 119 12.61 % 123 14 2 52 9 20 6 25 3 12 1
Arts & Crafts 357 95 26.61 % 98 5 0 66 5 12 2 14 2 1 0
Korean Language 240 8 3.33 % 8 1 0 2 0 4 0 0 0 1 0
Monero 565 58 10.27 % 63 54 0 5 0 2 0 1 0 1 0
Artificial Intelligence 3,179 259 8.15 % 280 31 0 161 4 46 5 35 1 7 0
Esperanto Language 171 5 2.92 % 5 2 0 1 0 0 0 0 0 2 1
Sitecore 3,394 621 18.30 % 647 151 8 303 30 60 7 113 9 20 1
Internet of Things 539 136 25.23 % 137 4 0 45 0 28 1 51 0 9 1
Veganism & Vegetarianism 110 28 25.45 % 28 6 0 12 1 3 1 4 0 3 0
Ukrainian Language 264 19 7.20 % 19 1 0 7 0 5 1 6 2 0 0
DevOps 1,774 360 20.29 % 478 17 1 54 3 294 16 77 6 36 5
Bioinformatics 1,078 69 6.40 % 70 8 1 23 0 11 0 22 1 6 0
Computer Science Educators 239 82 34.31 % 83 3 0 62 5 3 0 10 0 5 0
Interpersonal Skills 1,178 592 50.25 % 640 15 1 267 26 105 19 126 10 127 7
Augur 43 1 2.33 % 1 0 0 1 0 0 0 0 0 0 0
Iota 88 7 7.95 % 7 0 0 1 0 3 0 3 0 0 0
Stellar 456 35 7.68 % 36 11 0 9 2 7 0 7 1 2 0
Constructed Languages 68 14 20.59 % 14 2 0 4 1 1 1 4 0 3 0
Quantum Computing 1,518 170 11.20 % 178 33 2 34 4 65 12 29 5 13 3
EOS.IO 751 46 6.13 % 57 37 0 11 0 5 0 2 0 2 0
Tezos 907 76 8.38 % 76 30 1 12 0 12 1 19 0 3 0
Operations Research 657 53 8.07 % 53 8 1 19 5 6 2 14 6 6 4
Notes:
- this counts questions asked in 2019 and questions closed in 2019 - the AskedAndClosed and PctAskedAndClosed columns reflect questions that were both asked and closed in 2019, while the remaining columns total up all questions closed in 2019 - even those asked in prior years.
- reopen numbers also include questions asked in years prior - but limit themselves to questions that were closed in 2019 and then also reopened in 2019.
- if a question was closed twice, it'll be counted twice
- if a question was reopened twice, it'll be counted twice
