It kind of makes me think of how odd it would have been if many of the old forums named themselves like bookclub.phpbulletin.com, metalheads.vbulletin.net, or something.
There’s nothing wrong with doing that, obviously, but it’s struck me as another interesting quirk of fediverse instances/sites. Generally as soon as you visit them you can tell by the site interface or an icon somewhere what software they’re using.
Looking at nostr, I generally like the architecture, although the it’s very similar in broad strokes.
I like the simplification and separation of the responsibilities. I don’t like using self signing as an identification mechanism for a social network.
But crucially it seems like it has the same problem we’re discussing here, wrt different social networks based on that protocol, having different message schemas and capabilities, making them incompatible.