Nostr proves that these payment rails for value transfer could be added fairly easily to legacy social medias. But the legacy financial and regulatory systems don't like that much.

Once considered custodial much like wallet of Satoshi, my getalby and stacker.news addresses functionally just go straight to my own node.

That level of end user control, disregarding even selective feeds, and clients is too dispersed and hard to track.

Even if the protocol has a higher level of verification than the incumbent, the fluidity of user choice and interaction alone is too dangerous.