There is no way to implement any of this stuff. If you're going to diagnose then you first need to start with the ability of the protocol to collectively implement any major changes to spec. Once you diagnose that as being non-existent (as is the case for nostr), then you quickly see that diagnosing anything else is a waste of time. The cement dried for nostr about 1.5 years ago, at least as regards core spec (which is what you're looking at). What we have and don't have right now is pretty much what we have and don't have forever, besides decorative stuff.