Sir, I respectfully but strongly disagree here. Contrary to popular belief, strfry, and even strfry + nostream, as great as they are, still ≠ “all relays on Nostr.” I get that Nostr is an event-driven protocol and we want to keep events small, but honestly, 65 KB and even 135 KB are BS limits in terms of social media scalability. That would require us to reinvent not only NIP-51 but a bunch of other kinds as well.

For example, 135 KB for a long-term content blog post is really not great. One way or another, I don’t see why a relay limitation should dictate the encryption mechanism. And as far as I can tell, there isn’t a strong reason preventing NIP-44 from working with bigger payloads, is there? (Not a rhetorical question, I genuinely don’t know if this is a limitation relating to padding of the very last block or if there’s something in NIP-44 that prevents it from operating in block cipher mode).