Some past discussions. I thought it had been discussed more but maybe it turned up in other discussions rather than as a submission of its own.

https://news.ycombinator.com/item?id=8906167 - Jan 18, 2015 (24 comments)

https://news.ycombinator.com/item?id=4586692 - Sept 28, 2012 (24 comments)

https://news.ycombinator.com/item?id=600736 - May 9, 2009 (9 comments)