I know but the issue with that is as I've been on this stream for a while, and have tried to tell people to just block people, I promise you, they wont. People like fighting, that's just how it goes.
Letting comments that are starting arguments stay just becomes more and more problematic. The more arguments that take place the more people will wanna raid, which is bad for the whole stream. So it'd be better to just delete argument starting comments once any argument starts, especially since you can't expect people to follow the just block procedure.