[...] However, unlike Facebook, there is no requisite public information. One does not need to upload a personal image, describe anything personal unless willing, and can even operate on the social-media site without disclosing a real name or face. No data can be extracted other than the actions and content performed by that account’s owner.

Absolutely, that's how I operate here 😎 I feel that the facts of personal identity are a distraction from debate, the work and actions one does on a platform and lead to inevitable ad homs.

Is there a limit though? As an anonymous user I've spent some time thinking about this. What if I was a truly monstrous person, would anyone know? I guess I conclude that if I was it would come out eventually, I don't think anyone can be so careful. And then, what if I was never monstrous here, doesn't that make me effective not a monster, at least here? Is behavior the sum total? I'm inclined to agree, but there is a still plenty of doubt for me around it.

What I do agree with is judging people on their actions and words, not on facts about them.