Honestly, i use parsers, But 99% of the time its to see how i'm doing myself. If i see someone not pulling enough dPS or not Heal enough. idc if we clear it, how ever if this person is the issue that we keep wiping and not being able to get it due him not even passing 300 DPS and being outDPSed by even the tanks/healers. I'm sorry, You gotta go. And i don't need a parser to see who's not doing his part. Just makes it easier.

And thats talking about Primals/Raids(alex savage) Not talking about dungeons. Cause honestly, I'll never kick someone for having low DMG in a dungeon or what ever. i out DPS alot of DPS on my healer/tank. Thats not a reason to kick em.
I can tell they are fresh to the game, is that a valid reason to kick? Hell no. And anyone who does that should be kicked them selfs. If you want a perfect dungeon run 700-1k+ dps from everyone? Go make a nice PF group.