An alternative to parsers...

[Sylvina]

A PERSONAL parser where only YOU yourself can see how much dps you're doing would be greatly desired so people can improve their own dps. But allowing OTHER players to see your dps would be harmful. We know how it is in WoW where anyone can easily see your dps and kick you when you're not doing what in their mind is enough.

[Zojha]

A PERSONAL parser where only YOU yourself can see how much dps you're doing would be greatly desired so people can improve their own dps.

Mhm, less DPS (Because DPS can be skewed via synergy effects) and more PPS (Potency Per Second), coupled with a small note on where that PPS stands relative to other players for that particular instance (Like X percentile). Knowing you do 2000 DPS only helps if you know that 3000 could be achieved if you'd play better. Without the latter info, you might think 2000 is already the most you can achieve.

And that still doesn't help the issue that this doesn't tell you "how" to improve, only how much room for improvement there is.