Frankly I don’t see any way whatsoever that this would fly, and that’s a good thing!
Imagine what it would mean for software-development if one angry dev could request the deletion of all their contributions at a moments notice by pointing to a right to be forgotten. Documentation is really not meaningfully different from that.
Frankly, the solution here isn’t vandalism, it’s setting up a competing side and copying the content over. The license of stackoverflow makes that explicitly legal. Anything else is just playing around and hoping that a company acts against its own interests, which has rarely ever worked before.
You can when it comes to copyright. That’s EU-law and anything else would be such a horrible idea that no country would ever set up a law saying otherwise.
If you could simply revoke copyright licenses you would completely kill any practicality of selling your copyrighted works and it would fully undermine any purpose it served in the first place.
I’m not saying vandalism is illegal. I’m say that it borders on immoral and that there is a better, more radical (and thus effective) alternative that one might expect to be illegal but in fact isn’t.
Stack Overflow bans users en masse for rebelling against OpenAI partnership — users banned for deleting answers to prevent them being used to train ChatGPT ( www.tomshardware.com )