Cyberstalking just got a little bit harder: Facebook yesterday pulled the plug on the exploding Breakup Notifier app, which racked up more than 3.6 million users since it was released on Monday. In an email to app creator Dan Loewenherz, the Facebook powers-that-be wrote that "to ensure positive user experiences on Platform, we run routine automated screens ... and remove spammy applications," reports the New York Daily News. They even disabled the Loewenherz's personal account. Click to read more about the app, which sent users an email whenever a friend changed his or her relationship status. (More Facebook stories.)