Wow that's very interesting but it only works for the front page (and also only changes the order not the numbers), not for each comment page.

Maybe we should have a setting "count only votes before date yyyy-mm-dd" but this would probably make the site too dynamic (?) and consume a lot of resources.

FWiW as an aside, it appears to count votes from December 2008 accounts (as just tested using this 2008-12-26 account).

So that's at least strictly before 2009.

Decade and a half, really. Eternal September was 1993 or 1994, right?