Nostr is an open protocol that aims to create a censorship-resistant global social network. The protocol doesn’t rely on a trusted central server; instead, all users run a client. Using this client, users publish content by writing a post, signing it with their private key and sending it to other servers which then relay that content along. The relays are simple: Their only job is to accept posts and forward them along to relay participants.
How is this better than any of the existing open source protocols?
Check out the page linked to from this post https://exploding-heads.com/post/67818
It has a really good explanation of the weaknesses of other open source protocols and how NOSTr avoids them.
It is an exciting prospect if they can get it up and running.
I’m not an expert in these things, but what is described in the post you linked sounds good to me
but sounds too much like Bitcoin
I don’t think it is dependent on a blockchain.