being a good player isn't about being in the top percentile. Good players learn the game, know their classes w/o having to be told what to do when a boss fight comes. They know how to set up plans before a fight. And follow through with it.

Good players also help out other to be good players by giving tips and advice. Maybe show them the ropes.

Good players should be based on what addons you use. Or how fast you can down something. Anyone can kill anything in a game.

Good players know its a game and just have fun. Bad players needlessly brag over the dumbest stuff. And feel a player is only as gpood as the addons he got.