Yeah, I hear pre-50 instances are terribly hard- they certainly aren't for learning the game or anything.
Probably best to just act like an "elitist" jerk in a leveling instance to get them ready for dealing with people like you in post 50 instances.
It's a by-product of an incredibly easy game. Anyone can do anything, so if someone has something nicer than you it's an excuse for them to be jerks.
It's the "Eric Cartman" effect. Game is full of them.
