In-Game Parser.

[Gardes]

(Genuine) harassment towards any class can be reported. It's not just DPS harassment.

I see people moaning in ct/st/wod about tanks not grabbing or holding the adds fast enough all the time and mocking them pretty hard but I never really see people moaning about dps being too low (evidenced by phases taking too long and looping too much).

Probably from fear of people accusing them for using parser (even if they're not) and reporting them.