Discussed back then:

https://news.ycombinator.com/item?id=2201620

https://news.ycombinator.com/item?id=2316901

https://news.ycombinator.com/item?id=9737156

https://news.ycombinator.com/item?id=32663433

And more recent:

https://news.ycombinator.com/item?id=14613982

https://news.ycombinator.com/item?id=46045039