This is the question lolol. I often wonder this.
However there are some genuine communities here, not that many but perhaps promising.
Check:
#Meshtastic
#siamstr (Thai community on nostr)
There's a bunch of #monero people
And scattered about the place some privacy-focused people.
There's a #christian community
There is a possibility with the setup of relays you could have communities who can't / don't want to be found. I suppose this is unknown.
Hopefully more emerge tho.
But yeah you're not alone in this conclusion.