I've never had the great honor of being called a cheater yet, but what I like are the guys that you shoot down, then have to get on CH. 200 and announce to the world that they've just been killed by way of things like:
"nice AFK kill, dweeb!" , etc.
I just don't understand the mentality that has to make an excuse every time they get shot down. A soemone stated above - everybody gets killed one time or another - get over it!