Except that didn't happen. There's no evidence that a large portion of Facebook's users were confused about the privacy changes in December, yet many people keep repeating that as fact.
Jesus, a guy asks for a citation and gets voted to -4. If it's that dumb a question, post a link to a page with some sourced numbers in it and humble him.
Where was the previous poster asking anything? He stated something blatantly false that could easily be disproven by a simple web search. How does him stating something provably false place the burden of proof on everyone else?