Related to: http://news.ycombinator.com/item?id=2832865 http://news.ycombinator.com/item?id=2832865 It's hard to say when the initial idea came about, but it p

Related to: http://news.ycombinator.com/item?id=2832865 http://news.ycombinator.com/item?id=2832865 It's hard to say when the initial idea came about, but it probably existed in some form or another for 6-8 months before launching although no action was taken until around a month or two before launch.