Here is what makes me rage:
-Achievement farmers
-Idlers
-Kids on Microphones
-Graphics Whores
-People who assume something sucks just by looking at it
-People who barge into the steam forums and go to the Team Fortress Classic section just to whine on how TFC sucks just because it does have some stupid loving shiney graphics
-Grenade whores
-People who brag about having the best and fastest pc out their
-People who buy a Mac just because they think they wont get a virus.
-People who don't even try to type something with correct punctuation,grammar , and spelling
-Grammar national socialists
-Snot whorshipers
-Halo fan cigarettes
-Counter strike kiddies wanting every game to be like theirs
-People who announce to the world that they are a furry
-Disney, JD, Miley, and the worhshippers(I also hate people who like crappy music)