Is this adjusted by post date? Posts from before the relaunch are going to have much less karma, on average (and as user karma grows and the karma weight of upvotes grows with it, average karma will increase further). A post from last month with 50 karma, and a post from 2010 with 50 karma, are really not comparable…
Rerunning the whole vote history with the new karma is one of the next things on our to-do list. Right now it will indeed be biased towards the recent year, which I hope to fix soon (that is one of the things that I consider necessary before removing the “[beta]” tag from the feature).
Rerunning the whole vote history with the new karma is one of the next things on our to-do list. Right now it will indeed be biased towards the recent year, which I hope to fix soon (that is one of the things that I consider necessary before removing the “[beta]” tag from the feature).