My experience is that it's less toxic than it used to be, in terms of general norms and behavior; and that territories have helped with that, since SN seems less appealing to brainless maxi types who just want somewhere to vomit the creed they read on Twitter into each other's mouths. Real people talking about their lives seems to be a countervailing force against extremist stupidity -- that's what I've observed in real time since July.

Whatever badness is leftover is a function of humans at scale. If you don't like it, model something better. It works.