I cant ignore it, I'm afraid. His bullying is beyond a joke, and
Mental distress (It must be?) is not an excuse to treat people badly.
I have mentioned it before, but those who have been falsely accused, and their families, and anyone who cares about the injustice, NEED a place to talk openly without being harassed.
If the posts are vetted beforehand, how is it possible that he is free to torment? Ignoring it seems to be making things worse for him.