Parsers aside.

The community needs something for people to know if they are doing good dps or bad dps.
As of right now, our options are:

1. read about rotations and try to pull them off the best you can and hope they are right.

2. Use technically illegal parsers

3. Eyeball it with how big of numbers you get (lol)

None of these are great options. So no matter what side of the fence you are on, the community does need a way to improve itself. Especially in terms of dps.

Is an in game parser the answer to that? Maybe.