The problem with nostr is that it’s designed to be decentralized. It can’t have an entity be responsible for payments like eBay. So the concept of transaction being held by the 3rd party until the goods are received involves an intermediary who should be trusted. That’s what bitcoin tries to solve. Need for intermediary.

In the future, apps or protocols built on #ethereum and #solana are supposed to solve this problem. But #bitcoin as a technology cannot solve it.