You can't have a competitive MMORPG with challenging content that require very tight DPS checks sometimes several per fight and NOT have a way for players to measure their own performance. It's bad design. I could care less if it's publicly made known to the whole group or not, I just want to have a way to fine tune my own personal skills as a DPS cuz I am a competitive player and want to be at my best at all jobs that I play.

If you're not a good DPS or a good player, you're going to be booted / insulted / harassed if you try to join difficult content anyways. I'm not trying to sound mean but that's the reality. So I see no real purpose in denying the competitive players the ability to improve their DPS by giving readouts. If just making the readouts personal and not public will satisfy everyone then that's perfectly okay with me.