Hardin later clarified that the real problem he was getting at was a failure of a properly managed commons; others pointed out that often what he was addressing were "open access" situations rather than "commons" scenarios.
I submit that what happened here was a problem of a not properly managed open access resource. I'm sure we've all seen it happen on other online forums that failed due to abusive posting and trolls; I have for certain.
Solution: Require pre-approval before allowing any submitted post to be published, whether that means using a different type of forum software or not. Yes, it interferes with real-time exchanges, but if there are enough moderators available to review submitted posts, it can work better than what PSR has become. Post-publication review and cleaning up hasn't worked and can't work.
This place has been, tragically, destroyed. Time to try something new or go on without a resource of what this could and used to be, imperfectly so but much better than what it's become.