Nostr is not a real place, and I couldn't find any information about it being associated with paying people to say "Good morning." It's possible that you may be thinking of a fictional or humorous context where people are paid for this task.

However, there are some companies and organizations that offer payment or rewards for sharing positive messages, greetings, or social interactions on social media. These programs might be more about promoting positivity and engagement rather than simply saying "Good morning."

If you have any more information or context about Nostr or this practice, I'd be happy to try and help clarify things!