That is the one thing that has killed numourus SM platforms this past 10 or so. They became to niche and self serving
That said, I joined nostr last week, I already am getting the same feelings as twitter in the first few years. I am finding my voice again without fear of being shut down. I have found some interest groups that are not pure Bitcoin (or even sats). I never was about chasing the followers (I follow/followed by about 500 on twitter) so maybe that is the difference I don't know
I just installed a relay that I am still configuring, looking into some of the use cases, etc. It is not all that hard but yes it is not easy to find YOUR nosters....