We can have up to three custom close reasons offered when voting to close a question. (More can be added by request if there is a demonstrated, pressing need.) Do we have any situations arising often enough to justify a custom close reason yet?
Note that we don't need to use these, they are there for if we find a use for them and aren't going to get taken away just because we don't put anything in them straight away!
Edit: I've removed my examples as no-one can vote on examples and they might confuse people into thinking they were already being added.