The tex tag currently has only 3 questions (only 2 till yesterday :)), and all of them have been closed. Moreover, I imagine that any question that fits the tag would be more appropriate for TeX.SE anyway.
So why do we have this tag? Can someone give an example of a question that fits the tag and yet would be considered acceptable for this site?
Update (Oct 8): The tag is now deleted; see Jeff's answer for details.