I guess have lots of nostr questions today as I am digging into it.
Could you make a site or app that is subject specific? Like, I want to use nostr, but this site/app is only for discussing rock climbing or cooking. Then anyone on nostr can participant, but the site/app would only show those topics?
I guess that's as hard of a problem like filtering spam since you essentially want to filter out even more things, not just "spam" (whatever you consider spam)
Yep it basically requires spam-like defense.
The closest I have seen is hashtags.
Yes, but enforcing topic uniformity would be nontrivial, ie there's nothing built in to the protocol that enforces that a note conforms to a topic.
deleted by author