There's some discussion on that on the website for the book Building Reputations: "Leaderboards Considered Harmful" http://buildingreputation.com/writings/2008

There's some discussion on that on the website for the book Building Reputations: "Leaderboards Considered Harmful" http://buildingreputation.com/writings/2008/12/leaderboards_considered_harmfu.html http://buildingreputation.com/writings/2008/12/leaderboards_...