You're allowed to do whatever the f**k you want man. Must you have a label? Can't you just be a dude who liked the GI-Joe Movie, or a dude who likes Batman, Star Wars, Star Trek, etc. and not a [insert property] fan? The moment you stop giving a damn about what other people think, the happier you will be. For instance, I feel, that my opinion, is the only opinion that matters, and if you don't agree with me, you can go suck a tail pipe for all I care, or don't. The point is, Apathy of other peoples opinions is your friend.
However, it is fun to make fun of people who have stupid opinions.