calle on Nostr: Yes, I was just talking with a cryptography Prof yday about MLS and they told me ...

Yes, I was just talking with a cryptography Prof yday about MLS and they told me exactly this. Seems to be a generally recognized shortcoming of MLS, and there are probably more fun ways to fork a group if you're a malicious admin like not sending everyone the same updates when you kick someone out of the group for example, iiuc. Signal prevents this by enforcing consistent state via the server.