[citation][nom]nbelote[/nom]WoW is 99.999% low quality players. You might be an exception, but if 10,999,890 out of 11 million players are fail then my choices of whom to raid with were very limited.[/citation]
While I would agree that there are many good players in WoW, they aren't as rare as you seem to think. I get good, well behaved groups where people think before they do things and do things right about 2 in 5 times I run LFD. I tank (2X Pally, Warrior, Druid, and DK) and I run into all kinds. There are even times when I run into whole groups of total idiots. I usually leave those groups. I had one last night where I was really tempted, leveling up my second pally tank.
Quality players don't always mean they play perfect. I wouldn't want to deal with those elitist idiots. (They are the TO of MMO gaming. Sure they play great, but without teamwork, they fail no matter where they go. Teamwork is the way the world works. If you can't play on a team and appreciate your teammates, you aren't worth squat.)