It might also be because this link has been posted at least two times recently: https://news.ycombinator.com/item?id=5796935 https://news.ycombinator.com/item?

It might also be because this link has been posted at least two times recently: https://news.ycombinator.com/item?id=5796935 https://news.ycombinator.com/item?id=5796935 https://news.ycombinator.com/item?id=5807149 https://news.ycombinator.com/item?id=5807149