I see a lot of questions that start out like, "Why does this hyperlink not open in a new window?", and the solution ends up being some typo in the server-side code that is obviously unique to the OP's specific code.
Whether there are valid answers for the question or not, shouldn't it be closed as "too localized" when this is discovered, on the grounds that there is no way a future visitor will benefit?
The reason I ask here is because actually this comprises what seems like a significant percentage of new questions, and I get confused about whether to vote to close for this reason or not.
Another example: Why does this code crash -- it's a legitimate question (just pretend it was framed well for the sake of argument), but should it be closed? I feel bad closing questions like this because there is an answer and someone will help this poor guy, but let's be honest - nobody but the OP will ever benefit from it.
Categorically speaking these are questions which defy classification until the solution is actually found.