Mastodon proposes another non-private privacy scheme. I don't think this leads anywhere good, other than users ending up confused and sometimes doxed. Times are tough, and fake privacy may really put some people in danger. Mastodon doesn't need to do all the things, and most people are already using good enough private chat systems which genuinely implement public key encryption. Just add a way of linking to that.
@bob indeed, until we have something that actually provides real privacy, we just need to accept the limitations of the tools we have and recognise it's a problem that still needs to be solved