This problem stems from a limitation of the way HN maintains state. An earlier post with some links to the problem code is here: http://news.ycombinator.com/it

This problem stems from a limitation of the way HN maintains state. An earlier post with some links to the problem code is here: http://news.ycombinator.com/item?id=163755 http://news.ycombinator.com/item?id=163755 This is a well known problem pg hasn't gotten around to fixing. See YC: "unknown or expired link" -- fix it already (790 days ago) http://news.ycombinator.com/item?id=28944 http://news.ycombinator.com/item?id=28944