Yik Yak, an anonymous messaging app for college students, announced today that it would finally be shutting down. The app first launched back in 2014 as a way to discretely communicate with others nearby, and it took off quickly for its gossip-centric role in American universities. Along the way, the team scooped up $73.5 million in venture capital funding. With today’s closure and an accompanying SEC filing issued last week, we’ve learned that mobile payments company Square looted...