That just shows that some immature kid over the web is controlling you. He's telling you "You ****in suck noob, you fail at CoD, go play Mario Kart" (example) and you are listening to him because you way of solving this problem is to quit playing online because you're not smart enough to mute or just turn off your WiiSpeak?(whatever it's called)
Or just do like me and not use a mic? The only people I talk to online is my brother and real life friends. I tend to not relate to people when im a 21 y/o from the streets and everyone else tends to be in their teens talking about what "Jessica" told them at school while yelling "OWNED NOOB"