I don't like noobs on video games because they basically act like idiots, depending on who they are and the severity of their noobness. Some noobs are dumb enough to think that since the FAMAS on Modern Warfare 2 is burst-fire only, the FAMAS in real life is also burst-fire only. When actually the real life FAMAS has three selections of single-shot, burst-fire, and fully-automatic.
Another thing I've seen is some idiot jumping right in-front of you while you're in the middle of shooting, and thinking that it's your fault and they start shooting you back and try to kill you in the game. I hate idiot people that do that crap, ether play the game right or don't play at all.
Sometimes noobs can be funny, like the 8-12 year old kids that think they're bad and cuss at you or cuss you out. It's funny sometimes because you're getting cussed out by an 8 year old, but then you own them.