Just to note, the OP linked at Computer Science: https://news.ycombinator.com/item?id=1636275 https://news.ycombinator.com/item?id=1636275 Is dead and robots.

Just to note, the OP linked at Computer Science: https://news.ycombinator.com/item?id=1636275 https://news.ycombinator.com/item?id=1636275 Is dead and robots.txt kept it out of archive.org . Of course, the HN discussion is still, if not primarily, worth the reference.