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People like to say "email leaks metadata" but consider this: Delta apps do not store group metadata (memberlists, group names, avatars, keys) on servers. By comparison,

- #matrix stores group metadata unencrypted on home servers and replicates it to other federated matrix servers

- #signal stores encrypted group metadata on Amazon cloud servers

#deltachat uses a #p2p messaging model for encrypted group metadata where servers function as transport only.

@delta The delta group concept in its anarchic cooperativity is so far away from every kind of group we have *ever* seen based on *any* protocol, I can't even blame people if they find it hard to wrap their heads around it.

@unixtippse heh, probably.true :) however, we could layer a cryptographically secured hierarchy (admins) on top but for private messaging we still don't consider it worth our while.