@nivex @erebion hmm for me the post is from a person, which believe everything else is bad and develop a new Messanger (SimpleX) instatt of extend improve an existing one.
He has some good point, but the main point is not called: Interoperability, this RFC of the MIMI Working-Group is a standard which is designed to work over Messenging-Systems.
It would be fantastic if i could send Messages e.g. from Matrix to XMPP-Users or Signal ...
If we still use different E2EE for every Messenging-System (OMEMO, OLM, OTR, GPG, SMIME <- yes most based all on Signal-Protocoll but it is not standardized) we would stay in a vendor-lock (or breaking E2EE an Transports / Bridges between Messenging-Systems) ....