The thing is, any service that offers a "censorship-free" alternative will instantly attract mostly by those whose content is garbage for everyone else: usually it's pedophiles until the operators get a couple not-so-nice letters or a police raid and then at least introduce modest moderation, and then come Nazis, antisemites and conspiracy myth peddlers.

And said hate peddlers then complain that they don't have the reach they enjoyed on Twitter, Youtube and Facebook... well d'oh. Turns out one who is not a Nazi, a journalist reporting about them, or an antifa activist collecting information wants to spend their free time on a platform dominated by Nazis.