They can't deliver their spam message to begin with. You'd need to approve the contact then you could still block them if they spam you. There's still friend-

They can't deliver their spam message to begin with. You'd need to approve the contact then you could still block them if they spam you. There's still friend-request spam on facebook, but not nearly as much as email because you can just ignore the people you don't know and block people you do know if they begin to spam you.