> People post heinous things under their full legal names just as readily.

I disagree with "just as readily" (i.e. most of the most heinous things are indeed bots or trolls).

Also, I imagine that without the huge amount of bots and anonymous trolls, the real-name-accounts would not post as they do now - both because their opinions are shaped by the bots AND because the bots give them the sense that many more people agree with them.