Nuh, I like you, but this is a word salad of confusion. I can only tackle one point per post, so I'll just pick something.

Nostr has an identity part, and a relay part. The identity part is valuable. It is valuable with relays and without relays.

As you say, another way the same keys are used are in bitcoin, which is a financial network, or time chain. There are no relays, but the same idenitity and signature system.

Fortunately for nostr, and unfortunately for some rivals, DID complete messed up how these identities can be used in other contexts, they took a decentralized identifier (which I actually made for bitcoin) and made it centralized and added shit coins. It works, but it's fundamentally broken.

Using nostr identity can be used in other contexts that relays and bitcoin. This is a whole new wave on innovatoin to be opened up. The NIPs are not doing it, right now, they are in fact more of a technical debt collection of hacks, which is OK.

I've started on an extensible way to use nostr identity together with web standards, which is what DIDs were supposed to be.

I'm slowly putting together a structured web standards friendly integration of nostr and the web, but there is little appetite right now for an extensible scalable arch for nostr, which is again OK : https://w3id.org/nostr

There's really no one doing this right, not AP, not Solid, not IPLD, not "web5", not DID, not bluesky. Nostr is probably in last place on the list right now, but has the most potential. With a clean identity system in multiple contexts you can easily scale to billions of people.

So facebook continue to win, and Elon wants to build his super app but has no clue how to do it. It will be interesting to watch the future unfold.