Annoying things in online gaming?

New people who dont know anything, ask you to explain it to them, then after you finish explaining they claim they knew it all along.
Sudden & unforseen/unexplained server lag or just plain disconnection(FOR NO FUCKING REASON).
Shitty community full of shitheads.
People who try to tell you how to enjoy YOUR experience of the game when it has no impact on them whatsoever(While playing DCUO I was bothered for soloing & not joining a group.)
People who will go out of there way to fuck with you because of how you enjoy a certain game(like a non role player going to a roleplayer populated server just to bash rpers for rping, effectively wasting everyones time with useless trollage)
games where its fucking impossible to win unless you bought the game the second it came out & started grinding online so that you could keep up with the other guys that spend 50 straight hours grinding just so that can have lmao's while they crush lv one peons with their maxed out characters in unbalanced lobbies.
Random lobby bs where you cant invite friends or make them because the system wont let you know the id of someone who was potentionally cool.
People who spend all day & night maxing out their characters and then bitch about having nothing to do.
CHILDREN.

Retards who dont know how to properly use cover, run out & get incapacitated, then basically rush you to come save their asses while youre forced to turn into captain badass to pull it off.
Jerks who hog ALL of the ammo, and almost never use it, opting instead to watch you get shot to hell while they count butterflies in passing, leading to the inevitable ragequit.
Partners who lag to the point of disfunction(timer syncronization is so off that we cannot even interact properly)
Super pro basterds who try to force you to go all of their "secret better routes" only to blame you when you both get blown to bits or something.
CHILDREN.

People who keep their mics on max volume & proceed to talk about irrelivant shit over the net while everyone who cant find the mute button is forced to listen.
Whenever the mute option is hard as hell to find.
People who purposely use mics to fuck with someone elses gameplay or to talk shit/bitch excessively.
Games where having a mic online improves coordination & gameplay, leading to disadvantages if one is not owned(Like AC multiplayer)
People who have mics, and have the volume turned to max, or even high enough to hear something, & dont say anything. Instead, you get to hear them eat something loud and most likely crunchy very loudly and sloppily.
CHILDREN(Honestly I mostly just run into children on LBP, which is of course understandable, leading to my decrease in the desire to play it)

Common decency being absent.
Excessive & irritating lag
Excessive glitching & or camping bs.
stalkers.
elitists.
hatemailers.
People who ask if youre a man or a woman.
lots of other shit.
CHILDREN!!!

Fucking stupid parenting these days ruining my gamerboner with little preteen sunofabitch mucking up my fun experience with his pre puberty lols & over used instances of curse words. This leads to actions that will in one way or another make these annoying brainless sods want to msg you for something that leads down a braindrain of bullshit that cant take at least 30 minutes to resolve completely & with no loopholes.
They also tend to SUCK ASS at whatever game they are playing, & are usually complete idiots who cant figure out anything. You know, because they are CHILDREN!