I didn’t realize that @next@fedi.copyleft.org had relaunched, that’s certainly worth following – thanks! Cara is another example of a license where they’ve put a lot of thought into the AI issues - https://cara.app/terms The Cyber License project however is discontinued: “While we thought we were onto something innovative, it’s become clear that Cyber License might have been more of a miss than a hit.”
Agreed that there’s a lot of value to social networking than “the public square”, and that non-public data is much more resistant to AI scraping both technically and legally. In general I think this is the sweet spot for fedi, and projects like Bonfire, GoToSocial, and Frequency really get that. Alas most people in today’s fedi are on Mastodon which doesn’t even have local-only posting.