I'm not sure I'll disagree with you too much, it doesn't feel like a social media a lot of the time in fact. As a user it feels like stepping into what should be closed beta for Devs. Which is sort of interesting to me at least. There are some (albeit v unlikely) scenarios which would make user vibrant, and I don't think they'll happen any time soon. Or it'll happen not as-is but on an offshoot of a web app attached to nostr with a particularly usage. I think the most likely scenario would happen after a period of nostr 'dying' and a community steeping into the wasteland, like offgridders. Again, I'm not sure this is likely.
What's your take on urbit? If you have one?