NO ! But, in case you really underestimate the stupidity of such an idea you are free to implement it. Nostr is open protocol and anyone can build anything on it. View quoted note →

I don’t think there’s a restriction on that. Like anyone come make a client that allows for other crypto payments. That the currently slate of clients does not, theoretically, just creates an opportunity for a someone to win with a client that does… Would I be less likely to use a crypto client - probably…but who cares, let the market speak…