The algorithm seems to be weighted to boost new subscriptions - looking at the Chartable top US-all there is one at #20 which recently launched (has 6 episodes) which is above This American Life at #28
Maybe it should be more weighted towards regular releases over a longer period of time... points for releasing on average of once a day, or once a week for over 2 years after hitting X subscribers. I can't speak for anyone else, but those are the podcasts that I would be most inclined to want to hear/see.
