Lets see
- you can already play chess over nostr messages
- you can do coinjoins over nostr
- you have actual e2e encrypted DMs over nostr
- there are multisig setup protocols over nostr
- there are pastebins
- clipboard sharing across devices (copy in one client, paste in another)
- chat rooms with optional moderation
- no algos to shadowban you or whatever
- ability to tip the author of a note directly, with no intermediary taking a cut
- mobile, web, desktop, CLI clients
- an open API with no throttling or registration needed, free of cost
- and more
None of that is available on Twitter.
