AceBandage said:PUGing has never been acceptable, outside of rare cases.
It just amazes me that people can put dozens to hundreds of hours into a game, and still not get the basics.
Back in WotLK it was possible to solo all the way to level 80 with only 400 dps. I was once in a PUG with a player who was doing only 200 dps. (I barely understand how that is possible, it should be possible to do more just by auto attacking.)
There is a big difference between the solo questing play, which is very undemanding, and the needs of group instance runs. There needs to be a better bridge between the two to teach people who spend most of their time questing the skills needed in groups. Blizzard is trying - the special 'bosses' that they present in certain Cata quests that often require you to defeat them using a special mechanic (kill the crystals first, kite them over the eggs, etc.) can help some. But I'm not sure there really is any way that group skills can be taught except within a group.
So keep in mind, the people you meet in PUGs may have been playing for a while, but they may have very little experience with the group side of the game.
Or they may just be terrible.