I find it interesting that the author (and many others that argue in favor of federated systems) refers to Signal's (The Ecosystem is Moving)[1] post where Moxi

I find it interesting that the author (and many others that argue in favor of federated systems) refers to Signal's (The Ecosystem is Moving)[1] post where Moxie outlines their reasons for not federating, but without acknowledging any of those reasons. Would Signal have been able to roll out sealed sender / private groups / many of their other security features in a federated system, without leading to a fragmented experience? While most people would probably be able to download an XMPP client and sign up for an account, you'd lose them once you start explaining that they can't send encrypted messages to their friend on another server because that server doesn't support the necessary XEPs. The importance of usable security seems to be ignored here, as is often the case in technical circles. [1]: https://signal.org/blog/the-ecosystem-is-moving/ https://signal.org/blog/the-ecosystem-is-moving/