You do know that this is a way that Facebook uses to ID your account to reopen it if you're ever hacked so by doing this, you could possibly be opening yourself up to having your account hacked and the hacker will have the opportunity of getting back in when Facebook locks them out.
Emailed the guy about this, got a response already. I don't care enough about my FB account to care it may get hacked. Plan accordingly
Sorry, but i'm not risking my personal info and that of my friends and family for $5.00, and that's if it pays, but good luck to ya and hopefully, he'll pay out.