It's the first time I hear of Gab Social or Truth Social...sorry. :I've even received death threats here on Nostr, via direct message, from a complete stranger, something that has never happened to me on absolutely any other social network. 😕" - It seems Nostr is not a place for you. 

 That's the point! Nostr should be a place for EVERYONE! Otherwise, it will always be a niche social network, restricted exclusively to right-wing libertarians and bitcoiners. That is, it will never have exponential growth like Bluesky, for example.