In the gaming community, I see less acts of fanboyism than I see just plain hatemongers. That is, I see more people spewing hate for Sony, Microsoft, Nintendo, Santa Claus, etc than I see people defending what they like. Maybe it's because nobody is looked down upon for trashing a (insert game/company/elf here) but they are looked down upon for defending it.
I for one say fuck you to the haters; I like Nintendo, I like Sony, I like Microsoft, and I think Santa Claus is a pimp. I'm a fanboy of gaming, and haters can suck my Nintendong.