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by ben1040 4424 days ago
I have a Facebook account with zero friends on it. I used it to "own" an API key for an app I built for a freelance client.

The "People You May Know" screen on that Facebook account has plenty of people I do in fact know.

I imagine through people uploading their address books and then Facebook mining shared connections, they inferred a bunch of my network without me doing anything at all.