I was just browsing through the review tab, and I saw a link to Wikipedia at the bottom of a tag information/about page. After looking around, I have seen quite a few of these. (I was going to post on Meta Super User, but this is probably Stack Exchange-wide).
Shouldn't tag wiki pages have all the necessary information contained in them so that a user would have no need to leave the site? Or even possibly a syndication of Wikipedia data (a la Facebook info pages)?
To me, it just seems a little strange.