I sometimes wonder where to ask a particular question (on Ubuntu? Unix and Linux? Superuser?) because all of the sites will have great people to help. This is not a common case for me but I already had it happening.
It may be, though, that a question goes unanswered for a while and would be , all in all, a better fit for another site.
Is it acceptable, then, to migrate it ? Or move (delete and repost)? Or copy?