What Ptolemy said has to be one of the dumber things I've read in this thread, 2nd only to everything Tonkra writes.

The only way I've ever seen someone be kicked due to low dps, was when they were doing exceptionally lower than what they should be able to do, and even then it was only in raiding situations. Nobody gives a fuck what damage you do in dungeons, unless it's clear you're afk and not really contributing anything.

If you take 2 similar players of equal ilvl/gear, one is pulling 40k+ dps and the other is doing 15k, then clearly it's an issue of the player being terrible. That type of player will get replaced quickly if they don't improve.

If some baddie has their bad badness exposed due to a parser, that's a good thing, not bad. They now know that A: they're bad and need to improve, or B: their bad self is getting kicked. And kicking a bad player from your party for a good player is never a bad thing. Well, unless you hate progression and like to carry dead weight anyways. In which case you're probably bad and should feel bad for being so bad.