What you are saying is Nostr somehow ends up as the bottom of the funnel... But that can't be the case, there's always a sale or upsale to shill. Otoh if many influencers just get zapped directly on nostr without needing to sell anything else then maybe at least shilling becomes more like good content. If v4v worked (which I doubt), then we would have less shilling.  

 There’s one less step on nostr if you have a mechanism to reach everyone async. You don’t need to get anyone to sign up to a mailing list for example, or to leave nostr to join a private community. 

 I think the major issue with all top of funnel comms, except maybe email, is that all margins of creators are squeezed away by the platform over time. Maybe that's a more direct reason shilling efforts are constantly rising, attempting to compensate for reducing roi on all channels. Nostr indeed could fix this.