Quote Originally Posted by Arrius View Post
Yes, and no.
There's the emnity table which you can observe during longer fights. If you see certain DPS being far higher on generating said emnity and start creeping up on the tank, then I assume their output is pretty good in comparison to someone who is even under the healer regarding generation (DPS-healers aside).
Quelling Strikes
Elusive jump
Shadewalker
Smoke Bomb

The game has no realistic or reliable way to get real time live combat feedback, many players who are doing horrible DPS either don't know that they are or don't care because nobody else can legitimately tell.