It doesn’t matter whether you join the app or not, anyone who has your phone number can add your name. Once they do, you won’t be able to remove yourself. Users have to be over 21 to join the app, have a Facebook account that is at least six months old, and be willing to review someone under their real name. Positive reviews go up immediately, while negative ones are held for 48 hours to give enough time for disputes. This can not be good.