I could write a long list, but here´s my shorter one:
1.- Stupid kids who yell the N word in multi-player without knowing what it means.
2.- People who don´t capitalize their "I".
3.- Racist people.
4.- Young kids that trash-talk in forums (Including my forums) just to feel like they´re grownups.
5.- People who mic spam all the time in death-match games (whether they´re kids or assholes).
6.- Fanboys (It´s kind of ironic for me to say that because I am a fanboy myself
)
7.- People that don´t use the search button in the forums.
8.- People who say "gay" when they want to insult someone.
9.- People who don´t check their spelling.
10.- Little kids who won´t shut the hell up in multi-player games (Halo fan boys are an obvious example.)
11.- People who use abbreviations of words, so don´t get me started with people who say "Ur" or "Teh" in their posts. When they do that, I always correct their spelling in my forums and yet they complain.
12.- Girls who treat you like shit just because they´re "Pretty", "Wonderful" and that I don´t deserve to talk to them. (Disclaimer: This doesn´t apply to all girls, I have many friends who are girls and I love them!.)
13.- The only thing that really pisses me off is when you get something in your hands that was worth your effort (And by that I mean that you earned the item) and then there has to be some dickhead who goes ahead and destroys it, or steals it, just to say "I am da Shitzz!!". But don´t worry, I always beat them until I´m tired.
And now here are the only things that really pisses me off:
14.- People who say this fucking sentence: OMG PC GAMING IS DEAD!!! or "The declining of PC gaming?"...
15.- People that don´t back up their facts when they said something stupid (Please see #14 for an obvious example.)
/Calms down.
Well, that´s my list.