> Just to keep everyone reading this thread on the same page: The point of failure being discussed here is the human factor.

Thanks for reiterating this, because I think it is a key thing people who are scanning this thread are missing.

I think this is actually the argument for a centralized system though. At least for something that's a replacement to text messaging. I think the issue with a federated system is that most people don't know how to run a server, even pretty technical people. So this makes sense as a slack replacement, but not text messaging. At least to me.