When You post an Ad as unregistered user, you are prompted at the end by the authorization module to login or sign up. In case you are a new user and chose to sign up, you have to fill your name and email then you're automatically registered as a seller account but you don't have a password. In case you log out you never can login again cause there is not a password. Even you can't change the password while you are logged in cause it is asking you the existing password which you never entered. So, you can't have access again to your account and listing.authorization.jpg