I think he has a good point. DNMs are very difficult to use and anything that simplifies them will have a large effect. And to have efficient DNMs will transform society. Imagine the efficiency of small teams that develop and can sell e. g. new pharmaceuticals without government interference. Or for gold trading without gov prying eyes. Why not start with keys for login on Tor. Maybe keys can be used over Nostr as well, using TCP over Nostr: https://github.com/asmogo/nws and onion routing. And it is less important for customers to be anonymous, but it is vital for vendors. Make it easy to setup.