I don't see the problem of someone being called a ps fan or xbox fan too.
It's not offensive at all. It's not the same when you say someone is a FANBOY, which is totally different.
Fan = Someone who like something.
Fanboy = Someone who like something a little too much, trying to ignore all errors/mistakes , and bashing opposites games/constructors/compagny/etc.
I'm a fan of Japaneses games for exemple, so logically you can say i'm a Ps fan or even nintendo fan (well, not so much now, lol).
[spoiler]Plz no ban, it's Xmas soon.[/spoiler]