everyone starts out as a noob on a game. the more they play the better they get. how good you are is about proportional to how much time you have spent on the computer playing the game.
many players do not recognize this relationship, and have a lot of respect for the top players - who in return can enjoy calling the poorer players noobs, (the people who have more of a life and simply play less)
once you start calling others noobs, you know you've spent too much time playing the game.
flexx(noob): hey demon! :D you are good player
demon(pro): hi, thanks
demon: he's such a noob lol
hecheats: omg cheater
demon: lmao f*cking noob you suck