First is the Obvious Cheaters/hackers- Yes, it is those who modify the fabrics of the gaming system to their favor. Cheaters never win....or do they?
Next is the immature, ill-educated, Trash Compactors. They will talk trash all they way. "You suck, you the reason why we lost." "OOOHHH, 3 kills, 10 deaths!" "BLAHBLAHBLAH".
Then is our Major League Gaming "Skill-players". They glitch but not mod. Glitching is really not necessary. They may not trash talk but they may have skills to back up their lame conversations but the constant "teabagging" at a high rate. Why do they always "bully" the new guys but not register to play on Gamebattles or an M.L.G site?
The Suck-Ups. So you have Recon, you have the Gamerscore of 1,000,000. You are gaming employee or Xbox Live service member. You may even know people of these categories. These guys will spam messages to you so they will use you to know the fame.
2-Stars D.J, they blast the music that you hate the most. Rap, Rock, or both. Just make you wanna just use the Mute option.
Actors...."I will ban you from Match Making" "You better not cheat or I will suspend your Xbox Live account"....yet you observe their Gamertag and their page does not have certifcation of Xbox Live service.
Others.........Do you have your own idea?