The interface looks elegant and easy to use. I tried the service without registering, but I was surprised on the next page that you were requesting email or Telegram. Why?

I mean, is it possible to use the service without registering? If the answer is yes, why should email or Telegram be registered? If this is a P2P exchange service, there should be privacy for users who do not wish to register and reveal their identity, and therefore it is not necessary to register email or Telegram.