This seems like a totally incoherent complaint. The alleged SO bad-actor is upset that they can't police a community, but the author has the same complaint, just directed at SO.

All platforms with any moderation system can be subverted by bad actors - IDK that much about SO's mechanisms but it strikes me as leaving the "community" far more leverage for getting around entrenched bad actors than discord, reddit, etc.

And what's more... it's software purpose-built for technical Q&A. Some of my SO answers have been updated by others as they became outdated. Not that I have some particular fondness for SO, but what a cool collective intelligence feature.

I have a feeling this was written for an in-group and broke containment, but the straight forward answer here seems to me to be "SO should have a report system for dealing with bad actors," not "boycott the forum I don't like so people use the one I do"