Who the fuck needs to protect their social graph? Some noob ass privacy faggot tranny!
SimpleX is okay, but how is assigning an ID to a connection more private than assigning to a user in practice? You're gonna share the connection ID through compromised channels.
SimpleX groups are O(n). Meaning if it takes a second for a group of 10. It's 100s for a group of 1,000.
User IDs don't matter if you're talking to people you don't know IRL.