Nostr hasn't afaik attracted any significant RW accounts or attention. The censorship of twitter is 'good enough', the audience / footfall is vaster, the topics are broader. They also tend not to like libertarians all that much.
Bitcointwitter big posters pop in here to drop off their latest slop they've been churning for years(100k, leg up, laser eyes etc etc) and treat it as just a small bitcoin forum, which tbf it kinda is.