We all know that the social Facebook is more than just serious about making the Web social, something which Mark Zuckerberg himself emphasized on at the f8 when he said the Default is Social. The features are already out there with Web wide like button and knitting the third party sites closer to Facebook. But go over to the page here and customize the Like Button for yours site, the colors especially.
Facebook thinks that there is going to be a need for people to actually use the word Evil when it comes to associating an expression to a site or page online. You can chose from three colors: Light, Dark, Evil. While Light and Dark are justified why would it use Evil?