HN frontpage ranked by discussion activity

This overrides a feature that I've seen described as the 'flame war detector'. If I understand the feature correctly, stories with a high ratio of comments to votes get a large ranking penalty. They tend to vanish suddenly and irreversibly from the front page when they pass the threshold, because they'll keep getting comments from participants, but don't have much opportunity to get any more votes from newcomers.

For instance, the "Google tips off cops..." story is ranked 12 here, but has fallen to around 200 in the normal ranking.

Other useful views:

https://news.ycombinator.com/over?points=100

https://news.ycombinator.com/classic

How about "slow" or "old" which would show submissions in which discussion still happens after x time units after submission date.

Is there an opposite version? I've found that many of the best submissions have a high points-to-comments ratio.

Please put links for these views to the top!