To be honest, the users I meet at Nostr now all know what sats are. The users who join Nostr have been patiently served by Bitcoin users. The reality is that Nostr’s current users do not have tens of millions of daily active users, but only tens of thousands of daily active users.

If someone is willing, they can provide free NIP certification. Whether it is free or paid verification, operators can refuse spam certification. This can avoid malicious attacks. The problem here is not the high or low cost, but the need for an economic incentive mechanism to encourage NIP05 operators to operate for a long time.

We can put a NIP05 filter button in the message notification bar. It can be used normally and left to the user to decide.