This is a "re-blog" of an article that's been on Hacker News multiple times before: http://news.ycombinator.com/item?id=2262437 http://news.ycombinator.com/ite

This is a "re-blog" of an article that's been on Hacker News multiple times before: http://news.ycombinator.com/item?id=2262437 http://news.ycombinator.com/item?id=2262437, http://news.ycombinator.com/item?id=1033433 http://news.ycombinator.com/item?id=1033433, http://news.ycombinator.com/item?id=3032332 http://news.ycombinator.com/item?id=3032332 (and more) Perhaps the conversations there will be helpful to those hearing about this tip for the first time.