CBS NEWS - Apr 9 - Brendan Alper says: "People hate things everywhere; everyone likes to complain." That truth led the former Goldman Sachs finance associate to quit his job and launch a dating app Hater that matches users based on what they hate. Users swipe on ~3k topics, loving or hating as many as they want. Mutual dislikes are a better sign of compatibility than mutual likes, and two studies seem to back it up. After a month, Hater had 350k users all around the world.