[Avamander]

> As far as I've seen the proof integration is used only for Mastodon insurances

Just Mastodon a very narrow view of what could be implemented though. I saw alpha implementation for Discourse as well, before Zoom acquired them.

> no need to ask for permission, no weird conditions to enter like, instance has to be bigger than N people.

Yep that sounds reasonable, as long as we're not going to end up with a DoS because of too many proofs.