see possible explanation here: https://news.ycombinator.com/item?id=32562052 https://news.ycombinator.com/item?id=32562052 (basically, the data had already been

see possible explanation here: https://news.ycombinator.com/item?id=32562052 https://news.ycombinator.com/item?id=32562052 (basically, the data had already been expunged?)