Mr. Terry, who is director of the emerging-media program at the University of Texas at Dallas, says a major flaw of the popular social network is that its all sunshine and no rain: The service encourages users to press the "like" button, but offers no way to signal which ideas, products, or people they disagree with. And "friend" is about the only kind of connection you can declare.
Real-world relationships are more complicated than that, so social networks should be too, the scholar argues. Hes not alone—more than three million people have voted for a "dislike" feature on an online petition on Facebook.
But Mr. Terry has decided to take action, protesting the ethos of Facebook by literally rewiring the service. Or at least, adding the ability to declare "enemies."