Most comments moved to <a href="https://news.ycombinator.com/item?id=19511813" rel="nofollow">https://news.ycombinator.com/item?id=19511813</a>.
It is a heartbreak every time I click on an article on hacker news, only to find that it is behind a pay wall. Perhaps hacker news should find a way to mention this somewhere in the title?