Idea: Better filtering for HN/social news

I think I should be able to view HN/reddit-like sites with a mode that hides all stories from me until the second derivative of the number of comments gets close to 0.

I don't necessarily want to see the newest or the best, I just want to see stories once they've matured/developed a little bit without losing them.

I often find myself checking back on stories after a while to see new comments, but not necessarily on popular stories, and it's not really something I'd want to bookmark.

news.ycombinator.org/best would be cool otherwise.

Noprocrast is good, but I still end up viewing the same thing repeatedly. Maybe I should just check the site once in the evenings or something.

What do you guys think?