Do a simple Google search for the word fanboy. You'll get essentially the same interpretation that so offends those that most resemble it. On just about ANY site.

From Urban Dictionary:
September 19, 2006 Urban Word of the Day

A passionate fan of various elements of geek culture (e.g. sci-fi, comics, Star Wars, video games, anime, hobbits, Magic: the Gathering, etc.), but who lets his passion override social graces.

Sound familiar?
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