Yes Facebook is evil. When I saw that Zuckerberg called users "dumb f*s" for trusting him with their data, and I mused on how criminals could exploit that data via phishing, pw guessing, and social engineering schemes, I joined the Perma-Delete revolution.
Really could have just as easy been a silly joke that is now taken out of context.
I wonder if any of us will ever make it to the level of Zuckerberg, but if you do, are you sure you never made an IM message or an email that might be used against you like this?