Yes. Can be by subject or whatever you want. Basically so that you can have notes feed from certain group of people that is on the list. The list can be public or private
Discussion
It's a good idea, although it's kinda presumptuous. We'll be building for something that might never happen, or at least not for a while. For now, we know bitcoiners like nostr and that they want to spend sats and build a circular economy so one could argue that the market place is a higher priority.