Don’t know if we already have this but if not, this could be a new breath for running away from Google’s polluted, hard to find any real useful stuff SEO World. With Kagi’s optimization for activity pub, it’s easier to find content within the Federation. With a blog system that supports activity pub, people can get interaction from Mastodon, Lemmy, PeerTube etc. And the best part is, you can do all these stuff with your self-hosted sites.
If we already have this, please let me know.
This seems tricky to enforce on a per-user basis since content federated to another instance for one user could easily be shared with another user on that instance without the original instance ever knowing about that.
It definitely does get tricky. In general, guarantees about control over the network get tricky, and it seems like a limitation of the fediverse for this sort of stuff.
Imposing limitations can maybe go far though. Keeping such users on a single instance or on a single platform could be helpful? I don’t knitter this space unfortunately. Maybe some cryptography would be necessary?