> “Stop copying the business that run on ad revenue.”
I agree, I’m not suggesting that people use the same business model. To the contrary, I was explicitly suggesting that this is the area people need to be thinking about. Right now the old business models remain the only ones invented that have been proven sustainable. This is where we need to big breakthrough and we have the tools we need to experiment. 

 Look at Keychat. 
Their model is to charge a “postage stamp” (ecash token of 1 sat) to send a message. 
It’s probably where Nostr relays will end up…