So why would an official parser change anything? Harassment will still be reportable.
The assumption you were making was that parsing was relevant to the behavior. That those people would not have been rude if parsers were not involved. Why do you think that would be the case?
Insulting is harassment, but pretty minor. Swearing is not harassment. Belittling someone is, but if someone's actually doing terrible then it becomes harder to distinguishing between belittling and describing accurately what they're doing and how they're doing it.