Well, for one thing, keeping personal data on people without their consent is probably illegal under most European nations' law, no matter how many of their friends tell you it's OK.

This is my basic problem with Facebook's whole MO: it tries to solve the one problem no single data mining company can ever solve -- having enough resources to spy effectively on everyone -- by recruiting people's own friends to do much of the spying for it. There is something fundamentally shady about that, if you believe privacy and control of sensitive personal data have any value.

Like mentioned before...you have to opt in to typing your phone number on your Facebook page, and it is visible to the people you've shared your Info page with, it doesn't get there by itself. More crying about nothing to make Facebook look evil?

Like mentioned before, these numbers have been imported from my phone on behalf of other people. I can assure you that my wife doesn't have her phone number in her facebook profile, yet there it is in the list. Likewise, I doubt my accountant has her PAs number on her profile yet there it is along side her FB profile along with an "add friend" link.

Like mentioned before, I'd be surprised that just because I accepted the T&Cs in app that this would be permissible under EU laws if the other party hadn't consented to FB retaining their number.

There are hundreds of people in my phone which are not listed from the link in the post, I only see people on my friends list who have their Facebook phone numbers shared there currently, or did at one time when it was imported into my phone book. Sounds more likely at one time your wife had her phone number pushed to / listed on Facebook and it was synced to your phone before she removed it.