[hermannj314]

I agree that people voluntarily join Facebook, but expectations are important. If I volunteer only to realize your intentions were far removed from my expectations then we have a problem.

Imagine I start a FREE postal delivery service for writing letters to your friends. But when your letter shows up at the destination, it is full of advertisements that I hand picked for your friend based on the content of your correspondence. Oh yeah, also the police asked for a copy of the letter. Oh yeah, and we also showed the letter to a bunch of your other friends because we changed our delivery rules and figured you wanted to opt-in. Didn't think you would mind.

But you can't complain. The service was free and you signed up voluntarily.

I'm neither pro / con on the Facebook thing. I never know when the real world rules should apply to the electrons. I think we are just making it up as we go.