The only situation where a Mac question is not an OSX question is when booting your Mac into Tails. I suppose in that case it would be a Tails question.
That's a good one. I would even consider adding other synonyms as well, as used in AskDifferent. I would love to +1 it, but don't have privileges. ;(
What about a Hackintosh instances of OS X? I mean intel-based PCs running modified OS X. It sounds weird at first time, but I saw it myself! Will such a synonimization take theese users out?