Nostr is a protocol for distributing digitally signed content.
The primitives on which it is build closely trace the elements of public key cryptography. It's unlikely that these are going to change.
So Nostr is not just some fad or fashion. Whether it's popular or a lot of people use it is in a way secondary. It's the correct way to authenticate on the internet, and that's all that matters to my decision to use it.
