I agree Nostr isn't likely a major threat to Twitter. 99 percent of people want a curated feed and don't themselves get banned. However, what else a decentralized relay protocol can do may be impressive. If absolutely nothing else, Nostr is introducing the idea of zapping real money to other entities, instantly, inside an app. But I think there is a lot more coming. Every day there is a new something with Nostr-- I can't keep up!