lizmat I see freshness more as a "top 40" thing, to be changing weekly: some algorithm decreasing the value of given stars over time 10:20
I see "quality" as something more of a "top 2000" thing, an "all-time" bests
Dutch people should recognize the "top 40" and "top 2000" references :-)
en.wikipedia.org/wiki/Top_40 10:21
en.wikipedia.org/wiki/Top_2000