On Nostr you decide to be whoever you want.
A Nostr profile usually includes a name, a picture and some additional information, but it's all optional.
The name is not a unique username, we can have as many Jacks we want! Feel free to use
your real name or a nickname; you can always change it later.
But remember: online privacy matters, don’t share sensitive data.
And yes, to join Nostr you don’t need to give your email address, phone number or anything like that, it is KYC free.