Think of it like a pyramid, tanks are on top, healers slightly below that (seems to be more healers than tanks) and then dps are WAYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY down below that as almost a sub-human class.

I know this as:
-DPS queues are mind bogglingly long. 30+ minutes, it is bloody insane.
-DPS are kicked even if they draw aggro by accident.
-DPS are kicked if they don't deal enough damage.
-DPS are kicked if they don't do their maximum damage rotation at all times. (IE: I've seen many bards kicked because they didn't use that 25% or less HP move.)
-DPS are hilariously easily replaced in dungeons when removed, there are so many of them it's like an insane clog.