There was some discussion of this topic yesterday at http://news.ycombinator.com/item?id=1477734 http://news.ycombinator.com/item?id=1477734 but that got killed

There was some discussion of this topic yesterday at http://news.ycombinator.com/item?id=1477734 http://news.ycombinator.com/item?id=1477734 but that got killed - not clear why - things did not get especially heated or anything...