I knew this was a scam as soon as I went back into facebook. I had not logged on in over a year, and went back in only to add a farmville plot and befriend my wife and hew mom so they could reap rewards. i noted several faces in that system that i knew had also not been on face book in a year or more, and also noted my wife's face. i know damned well she didn't upload a list of e-mails since she doesn't have them in a contact list to upload from (she uses webmail exclusively) and we had just gone through a process to export them for use for holiday cards, so i knew she did not know how to do it on her own. This was clearly them using faces of people I knew claiming-without claiming they had used it as well, to encourage me to. i figured that was shady, if not illegal, and certainly did not use the option.
I'm a huge facebook hater. Its a massive time sync with little return value (unless you like gossip circles). For your trouble, they sell your soul to everyone that will buy it, and continually change the security settings and re-default them to "off" exposing you over and over. i have an account simply to make other people happy with their flash games by being a neighbor. I'd love to see the whole sham come cracking down under lawsuits.