The Impossible Wall
I have never been (nor will I ever be) a user of any of Facebook's various properties. I have used every browser extension I could find to try to make my online life as Facebook-free as possible. If Facebook has any information at all on me,it was obtained totally without my permission.
How do I go about ascertaining whether or no that Facebook has or doesn't have any of my information? It is the impossibility of scaling that wall that makes this case so important.