Let me give you an example to illustrate:
Last night I was playing Black Ops multiplayer, I believe it was a Sabotage game (neutral bomb take it to the enemy base and blow it up). My whole team was reluctant to go anywhere near the bomb, since you get a big KILL sign above your head "But what would it do to my K/D!" "Oh nooooo" but alas, this is not what the most annoying thing is. Happily, though they wouldnt pick up the bomb themselves, they did all swarm to defend me when I did, so, I suppose thats fair. With their help I made it to the base, crouched down and armed the bomb.
Then, I saw in the tower close by, an enemy team member hiding at a window. Now, technically he was camping, but I have no problem with that, he was defending his base, but its relevant for what happened next. So, the timer counts down. Using the Objective for cover, I creep around to get a shot at the guy at the window, but he is too well dug in. I chance it - sprinting I make a run for the door of the building he is in and head up the stairs.
He knows I'm coming.
Quickly I bounce a flashbang into the room , he's blind! This is my chance, I fire as he flails hopelessly around, cutting him down and ensuring the safety of the bomb.... and at that moment it goes off. Good game, good game.
Apparently the person I just mentioned, didnt like this and felt compelled to write me a message.
CAMPING NOOB
Now as you recall this person was hiding in a tower, waiting for someone to attack his base.
Seems he was projecting so hard he thought I was the one that was hiding in the tower *brain melts*
That, is what I hate. A stranger being abusive. Reported, blocked.