If there’s one person qualified to speak for the individuals of the world on the subject of the quantified self, it’s probably Chris Dancy. He has spent the last six years publicly tracking nearly everything he does on the job–and more—and he warns that employees may not have the time to add this to their online social existence. He also warns that such tracking should be used merely to look for ways to change habits or behavior—not necessarily to rate the performance of every employee. April 4, 2015.