Yeah, seems good to me, in that it strikes a reasonable balance between keeping good stuff around long enough for you to see it, and keeping it around so long t

Yeah, seems good to me, in that it strikes a reasonable balance between keeping good stuff around long enough for you to see it, and keeping it around so long that you've read everything and get bored. Thinking about this some more, though, I don't think I'd want to see the exact same algo on comments, though; comments don't have the same infinite-firehose problem, and you don't want to encourage spammy necrocommenting on old-but-still-popular threads just to get "new comment" karma. Maybe something more like making vote fuzzing (which Reddit already does to some extent) inversely proportional to age, and actually sorting on the fuzzed value rather than the real one.