This was my first thought, too. I can't seem to hit the resource to check it out but even if the content is "stale" it can be used for a couple different reaso

This was my first thought, too. I can't seem to hit the resource to check it out but even if the content is "stale" it can be used for a couple different reasons. Initial snapshot of pages, decent starting index on self crawling (instead of reliance on BOSS or Bing), content differentiation, nullifying search bias (if existent)... But I'm not really a search guy so I could be jaded on its importance.