One thing I firmly believe is that arguing on the internet is 100% pointless and never accomplishes anything. We are too alienated and isolated and atomized on the internet to ever truly reach someone else across the gap of ideology and prejudice, everything bounces off because we're all just strings of text on a screen. Every debate is another random encounter in the posting RPG. Rather than a public square, it's a mob farm for exp.
I think online spaces can still be useful, but conflict is entirely useless. It's just for fun.