I'd prefer it just redirect to the top of news.ycombinator.com/. The ranking of stories change over time, so at some point "more" has no meaning when the underlying list has changed. Since everyone who sees the expired link page, goes back to the top, the site should redirect there for me automatically.

I guess another option is to have the URL be like: http://news.ycombinator.com/items?start=31 then clicking "more" sends you to whatever the current items 61-90 are.