@nicfab I take full credit / blame for any misunderstanding there! I forgot Masto would automatically @ you in any reply, and didn't think about how it would look like I was directing the question at you. My bad!
I'd love to see a wider discussion of this though, as the ramifications could be groundbreaking to private communications.
If there's one thing my professional life has taught me, it's how making things even a tiny bit easier / harder can have huge ramifications on what people actually do (or not).
This seems like it could genuinely make encrypted email easy after decades of adoption being very hard. That gets me very interested in the strengths and limitations of the approach and how it's adoption could be encouraged.
Could it be extended to something like @delta chat?