Wouldn't exactly describe Hacker News as failing. It allowed one person to run a site for a growing community in his spare time and the sacrifice was the occasi

Wouldn't exactly describe Hacker News as failing. It allowed one person to run a site for a growing community in his spare time and the sacrifice was the occasional expired link for some of its users. Not only do I think it was a fairly elegant solution, I feel like it was certainly a reasonable trade off. I'm sure pg would have been the first to change it had it actually effected things that truly mattered for a community site like Hacker News: story and comment quality.