It's sad but i stopped writing answers or comments on SO years ago. I used to have all these optimistic ideas about people working together to collectively grow our shared knowledge. I guess Wikipedia and the Internet Archive keep barely hanging in there, but if anything those cases prove my point: without one extremely strong personality to hold the corruption in check, all these collaborative "digital commons" projects are a leadership change away from completely selling out all the work put into them. That can be feeding everything into AI but it's also monetization schemes and EULA changes to claim ownership of user submitted content and locking the public out of your site without accounts and subscriptions.
And usually the public's only recourse is to tear it all down and start again, waiting for the next con artist to come along and steal the village's prosperity.