What questions should we use short-stories for? Most questions about short stories currently lack it so should we burninate it? If not, should we add it to all questions about all short stories?
It's a category that Makes Sense.
Short stories are a specific enough corner of literature, and enough of their own medium, that some users are likely to have special interest in that category. (Me, for example. I read primarily short fiction; I'm a huge fan of the form; I run an online short-story discussion club.)
While I certainly won't be interested in every short-stories question, being able to see what short-story questions the site has is extremely valuable to me -- much more than being able to search for any one short story in particular. Just as not every c++ question on Stack Overflow will fall under my expertise, but it's a good categorization for the site to have, short-stories is a broad but extremely useful categorization.
Bear in mind Shog9's answer on guidelines for tag-burnination: Does this tag even need to be burninated? Does it describe its content (yes), is it unambiguous (sure), does it add any meaningful information (even if it doesn't for you, I can assure you it does for me).
The basic conclusion there is: if some people are finding a particular tag useful, and it's not causing confusion or ambiguity or misuse, there's no reason to burninate it. "This tag is not helpful to me" is different from "This tag is not helpful to anybody."
A "short stories" tag makes sense, it's useful, and I'd definitely like it to stick around.
Let's think. One of the reasons for tags is to attract experts. Can there really be an expert in 'short stories'? No1, as short stories is a large genre, and it's impossible to have read all of them, or even most. Does it add anything useful to the post? No, because it mentions the story and most likely mentions that it's a short story. Would anyone follow or block the tag? Probably not. See the first point.
Seems to be pretty useless to me. Burninate it!
1With the exception of user14111.
If we keep it, we still don't need a tag crusade
If we do keep the tag, then searching and tagging existing short-story questions is a possibility, but I generally don't advise it. It's busywork, and it floats a large number of "older" questions up to the top of the site.
But if the community accepts short-stories as a useful tag, they can help tag new questions that need it, or existing questions that happen to rise to the top, or catch their attention. 10-30-50 incompletely-tagged questions is not really an issue; helping tag incoming questions appropriately is a good thing (and something most SE sites need to do anyway).