Interesting, I bookmarked it and will check it out later. The one thing that comes to mind is there's information out there, especially on the web on finding anybody anywhere. With a little detective work anyone can be tracked down with little info which leads to more info, and before you know it your on the persons door step.
But this is the old version right?
I think in todays world we need the new version. Its just way to easy to find people nowadays.