Okay but why not on Nostr as well?

idk, according to @John Carvalho pubky tried to share these issues with nostr devs and got ignored or attacked. idk if technically there's anything preventing the same to be done on Nostr, i don't believe so maybe I'm wrong. But you will end up doing what pubky did I guess, using mainline dht for discovery. People may not like it but pubky design looks solid to me.

That clown shoe came in here and insulted everyone and was a huge dick. That's not the way forward.

I think the ideas from pubky that are valid and needed will be ported over to nostr. The network effect is here and I don't think anything they've built isn't compatible with nostr.