Razhie answered Sunday January 24 2010, 8:05 pm: It's all fake.
Even if someone could make an application (not a group, or a fan page, it would absolutely have to be an app or something you download for it even to have a shot in hell of actually working) that could do this, Facebook would shut it down as soon as they found out, and probably slap the person who made it with a rather large lawsuit, because it would be the equivalent of hacking into their system and accessing data that Facebook has promised it's users to keep private.
So, don't bother joining and don't download anything that claims to be able to do this. It's either a harmless scam, or a harmful virus. [ Razhie's advice column | Ask Razhie A Question ]
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