We all know this. We are all powerless to change it. Corporations and governments control whether or not it can be changed. Politicians worldwide are being fed by the pollution industry. The poors voting changes nothing until the corporations and politicians decide to do something about it.
Walkable cities? Great idea. Needs politicians to approve zoning restrictions. Don’t drive cars? Great idea. Needs politicians to build public transportation infrastructure. Electric cars? Great idea. Needs corporations to produce them at an affordable cost. Etc etc etc.
There will never be a day when 10 billion people in the world get on the same page to demand the end of anything. We can’t even get a tenth of that many to agree to stop killing each other over border squabbles.
A decent approach, as a social platform, would be to use the Reddit model. The content is stripped and replaced with [deleted] if deleted by the user, and [removed] if removed by moderation (with the appropriate log in the modlog). This should maintain the overall comment chain.
I think the issue may be federating the update to other instances. I’m not sure how it works now, but if it’s treated as an edit, that should work like they currently do.