I've never seen a rewards system based on voluntary tips that are paid out from wallet to wallet work. On Publish0x, readers "tip" authors by clicking a button and the tip is generated on the blockchain by that action. The reader then decides how much of the tip to give to the author and retain for himself. The default is 80% for the author and 20% for the reader. I've received as much as 100% from readers, which is nice.
While Publish0x isn't perfect, I like that system better because it doesn't rely on readers voluntarily taking value out of their wallets and sharing it with someone else, something most people won't do. Readers are actually incentivized to tip authors because they know they'll also receive a part of the tip.
A similar system on Nostr might lead to more adoption.
Good point, I think Nostr would need something similar.