“am not saying I agree that Facebook users explicitly agreed to their details being harvested and moved around (barring something in the terms of use or Facebook privacy policy which I doubt). This is what I meant when I said there is more to that.”

I wasn’t quoting you Paul, I was quoting Plaxo, who you quoted in your post.

I disagree – I don’t see the argument that some people have implicitly agreed to share this information. I have not read one comment in support of this from a user who had their details harvested. BTW, some people didn’t share their profile with anyone but their friends – shouldn’t their request not be respected.

My home phone number isn’t listed in the book. I give it to friends. It’s pretty damn obvious that I don’t want them to give my phone number to companies who wish to sell me something – whether or not, I have told them it’s unlisted or not.