SO has quite a few questions tagged [latex]. Is it considered acceptable to go through those and reask the best ones here, or is that sort of question importing frowned upon?
There are also a few on mathoverflow that could also be imported.
I would propose the following guidelines:
- Only ask the question if when reading it you think, "Hmm, I'd like to know the answer to that one too.".
- Only ask the question if it hasn't been satisfactorily answered.
- Re-ask the question rather than just cut-and-pasting it.
- Link back to the original question.
Obviously, for a really great question these could be broken. The point of 1 and 3 is that if, as an answerer, I want to clarify some details before posting my answer then I don't want to go back to the original site and ask them there. I want to leave a comment and get some meaningful response from you, the asker. So 1 and 3 are there to ensure that I don't get the response "Dunno, I just copied this from SO."
See also this meta thread on stackoverflow (and I apologize for being impatient in the first comment there:))