Although I don't particularly like games in general and especially games on FB (it makes me remember my students planting tomatoes), this one's a bit different.
Helps improve your skills of splitting spam online content from real content in a game way. In the meanwhile you help science as well :). I hope it will sometimes help clean my personal (online) information from irrelevant content I don't care for. On the other hand I don't want to live in a bubble.