I HATE this. I'm enjoying a good match when some kid joins. He has a micraphone and starts talking. He has the highest freaking voice imagable and when you kill him, he starts to cry. It sucks. You mute the jerk, but he completely ruins the match. He is easy to kill, camps, and tries to kill his team for "not backing him up".
Does this happen to you, or just me?
EDIT: I dont play that many games online, but from what I've heard from friends who play online more than me, its the same problem is relevent for most games. I just have this issue with Modern Warfare 2.