Dumb question. if I enter my private key into primal.net on another devise, how do I know if this is secure? Does primal now have my private key?

Thank you for replying. I'm am on the outside looking in but I'm interested to see how nostr evolves and so see whether the nostr community philosophy manages to a meaningful impact in the real world.

Maybe wechat is what some people want?

What is the compelling reason for people to use nostr? I am feeling it but I'm not seeing it.

What is the point of Ln if I can't buy anything?