> What is the “intended purpose” of sharing all your contact’s details ...? That's Facebook job to make it clear when it happens. I don't know the actual text

> What is the “intended purpose” of sharing all your contact’s details ...? That's Facebook job to make it clear when it happens. I don't know the actual text of law, but I guess even if you are friends with someone, you doesn't have any right over any of it personnal data, thus they wouldn't be able to use it except if you previously accepted that usage (being matched with someone you know using that phone number).