Firstly, i love the recursive nature of the implementaion: "mnm is not mail"! Also, quite a fascinating approach; hoping it works out! Me being a fanboy of the matrix protocol, I've often wondered if there is a valid use-case for matrix to enable safe, secure communications between site user/customer, and site manager(s). Not just chat, but a sort of customer support mechanism, but also a safe, private mechanism for site managers and/or orgs to do reasanble outreach to user/customers. And, no, it need not be chatbots, though i suppose there would be a desire by some orgs for an implementation like that at the end of the day. My hope would be of course for a better chatbot than current standards. Obviously, there would need to be the delicate balance of ease of use, privacy for user/customer, ideally decentralization (for empowering liberty/freedoms), integrity of content conveyed (by way of non-tampering/security of content), etc.

In any case, good luck to the folks behind this effort; the more internet protocols (and not centralizied systems/orgs) that can help people, the better!