I don't think so. Most of their problems are things that they don't even think are problems. They've attracted a large community of moderators who think similarly.

Once you get to that point it's too late. Any changes you make to fix things (e.g. allowing users to block nuisance users, making it harder to close questions, etc.) will just anger your mods who are a vocal minority that love closing questions and are nuisance users.

The only way is a new site.