I've seen many 'confessions' pages on both
Facebook and Twitter for all major South African Universities. Someone
anonomously posts a 'confession' on a website and it gets posted to
Facebook and Twitter. My particular university has over 8000 likes on the
facebook page alone after just a few months. Obviously an app would show
the data as a live feed as well as making it easier to post directly from the app. This will be similar to other anonomous-posting apps albeit a few minor changes, including but not limited to a geofence feature and a rating system for every post (the higher rated posts rise to the top of the feed)