I just got a spam from a "friend" at facebook, so I phoned up the number given. She explained that she was sending an email to all her "friends" to tell them about her financial advice service.
A say a "friend", I think I met her once at a geocaching event, but I don't remember, and when she offered "friend" on facebook, from the "friends" we had in common, I guessed I must know her. Probably. Serves me right for being too trusting.
Well, I do know one way to stop getting spam from her in future. I think Facebook call it "unfriending". Her freedom of speech is nicely balanced by my right not to listen.