And yet:
https://voltage.cloud/blog/nostr/the-essential-guide-to-nostr-relays/
This is not just about zapping developers, many share the view that paid relays are where Nostr is going, supposedly because that fixes spam. Now where have I heard this before?

The Bitcoin Manual
What Is A Paid Nostr Relay? - The Bitcoin Manual
An introduction to how paid relays work on the nostr network, why you would spin up a paid relay and why you would want to use a paid relay instead

The Rise of Paid Nostr Relays
Adding Bitcoin monetization capabilities to Nostream relay through the ZBD API