2. Those annoying foursquare check-ins:

 Foursquare check-in was initially a cool thing to do. But people over did it and thus killed it. Do I really want to know where my supposedly sick colleague had breakfast and what he did in his bedroom later? I don’t think so. My facebook wall is filled with foursquare updates from people who update the location of their every meal and every useless activity. It only makes them look sad and pathetic. People, be discreet and make your events calendar in your diary not on facebook.