Topic based channels, for example nostr:npub135jqqcaxm7mddpgm7cxn9wf6fmdu7xjn23nnz42hynenr5guwl9skm487p its a lowent room for publishing music. There other announced ones, can be a kind of Reddit replacement. Also the cipher rooms are for private and secure communication. I have plans to add a cashu wallet so you can send tips and things inside the chat. Is the most cipherpunk public chat idea that i can imagine rn xD