After an hour scrolling through the Nostr global feed, it looks like a mixed bag out there, but next to nothing NFFW. If anything, a bit boring, with little material outside politics and economics, no #paint or #construction chat. A touch of music, bunch of memes. Large proportion of posts from non English-speaking accounts; more bitcoin posts than any other topic but not so overwhelming as to identify Nostr as a bitcoin platform.
It is Sunday so maybe it changes in the week, but my takeaway would be Nostr is a tiny platform, like miniscule, with little interaction. Nostr users are beyond early. Build it and they will come isn't a great tactic for raising awareness. That's OK, there's time to spread the word that this social media network, however small, is global, is not moderated by 3rd parties, has no algorithms foisted on users, and it works!
Maybe the best path to growth is to focus on selling the advantages of the Nostr tech stack to owners of other social media platforms so they can run a massive userbase with next to no outgoings.