You need an invite code. NotAHit is invite-only — someone in the club has to send you one.
Codes look like ABCD-EFGH-JKLM-NPQR. They work once,
and they expire.
Your email is used for one thing: resetting your password if you forget it.
Nobody in the club can see your password, including whoever invited you. You set it here and it is stored hashed.