It's true that you can't please everybody but you can strike a balance that is acceptable - which you've done. Nasty posts can come from ex-premies as well as premies, of course and it seems here that you've eliminated any of the nastiness that sometimes occured on previous forums.
Stay anonymous and although you'll get criticism for it, it won't touch you personally and will enable you to act as you please. A forum like this has to be a benevolent dictatorship for the many with the few trouble makers excluded. And again I state, the trouble makers are not always premies.
People need a place where they can post raw and sometimes emotional stuff without having people jump on their backs at every turn. This looks like a safe place and you can take the credit for that.