Praise then darkness, and creation unfinished

That's not only nasty, but unbelievably stupid. That kind of behaviour in a community like a small Usenet group where you have stable identity is completely self-defeating. Obviously people are going to remember and tell eachother that he's a misogynist creep, obviously he is going to destroy his own reputation so that nobody wants to correspond with him. I suspect he might even be sincere, because if he were doing this kind of thing deliberately to hurt people he would move on to new pastures where his past reputation wouldn't work against him. Having that tenuous a grasp on reality doesn't make his behaviour excusable, of course. Sorry you have to deal with that.