What I’m posting here is for the public and not for a closed interest group. Each website is a privacy nightmare by what you’re saying.
I know that DMs here are not private.
Discussion
People think that Nostr cannot be used for privacy, and with NIP-04, it's true. But there's also NIP-17. And there are apps in development like nostr:nprofile1qqsth7fr42fyvpjl3rzqclvm7cwves8l8l8lqedgevhlfnamvgyg78spz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3qamnwvaz7tmwdaehgu3wwa5kuegpz4mhxue69uhk2er9dchxummnw3ezumrpdejqj9swg4 further encrypting messages with Signal's protocol and preventing metadata to leak.