SeeThe reasoning for this is basic "what belongs on a given SE". We already covered this in Are campaign research questions on topic? [2012] for related reasoning. To cut and paste from that answer,
We are not the first ones going down this path.
Game Development.SE had this problem a while ago. Game Development is a very wide topic, and as such, ended up with questions on a lot of very different topics: animation, art, programming, physics, networking, web development, mathematics, sound, and so on.
In summary, their problem was this: A whole lot of topics which could be asked elsewhere, and many questions which should, but all these topics genuinely relate to Game Development! How do we decide what's on topic and what isn't!?
Our problem is this (seem familiar?): Topics like history, geography, boat speeds - many of which can be asked elsewhere, and many questions which should, but all these topics genuinely relate to RPGs! How do we decide what's on topic and what isn't!?
Game Development.SE's solution
The biggest question for other researchthem was about which programming questions thatare off topic and which aren't, and they discussed that and came to a pretty decent conclusion. Likewise our main problem areas seem to be history, geography, and other topics which are just asking about the state of the world at a certain point in time.
I can get the best wording by directly quoting Game Development.SE's FAQ, where it's specific to programming:
General programming questions more likely belong on Stack Overflow instead of here. A good rule of thumb is to ask yourself …
Would a professional game developer give me a better/different/more specific answer to this question than other programmers?
If yes, then feel free to ask it here. For more discussion on that topic, see this question on our meta site.
(Note: the "this question" link is the discussion I linked at the beginning of this section)
Our solution, from learning from Game Development.SE
Questions asking about a general real-world topic such as history, geography or economics might more likely belong on another Stack Exchange site (e.g. History) than here. A good rule of thumb is to ask yourself …
Would an RPG expert give me a better/different/more specific answer to this question than a Historian, Geographer, etc?
If yes, then feel free to ask it here.
This is a directly analogous situation. The question is "about" dice and dice are "used in" RPGs but the question has nothing to do with RPG-specific expertise and a RPG gamer will not give a better answer than a modeler, chemist, et al. Therefore it isn't on topic for our community, because we rely on applying RPG expertise to problems.
