The problem with white noise is you still need to get the key somehow.

That’s exactly the problem. If you can’t message someone until you’ve gotten their key.

My idea doesn’t rely on key exchanges or hidden access control. It keeps things open: anyone can message you, but they have to pay a small amount of Sats to do it. That cost filters out spam automatically, and the recipient gets paid. No need for trust establishment or awkward key sharing upfront.

Systems like WhiteNoise are fine for closed messaging, but they don’t scale for open networks. What I’m proposing is a better fit for Nostr's principles open, global, censorship-resistant communication with built-in incentives and spam resistance.