I will say that I have used the parser available, and I have improved my own personal DPS as well as the DPS of a couple FC mates.

If in the right hands it can help identify problems and improve high end play overall. In the wrong hands it can leave a sour taste in players mouths and lead to just overall toxic atmosphere. Not much you can really do about it.

If you remove/ban it you are taking out a good thing because of a couple of people that feel they need to wave their e-peen around.