Neat! I found it interesting that 8⁄10 of my top comments by karma are from pre-LW 2.0. At least some of that is because the rationality quotes threads were good for karma farming, but apparently there were also just way more votes being cast.
This will be slightly inaccurate for contributions from before strong voting was introduced, and more inaccurate for contributions from before self-voting was introduced.
Not important, but I guess there’ll also be some inaccuracies to do with vote strength changing. (Out of interest, do you calculate vote strength based on current karma, or their fuzzily-back-computed karma at the time they made the comment/post?)
Where userSmallVotePower and userBigVotePower are taken directly from the LW codebase.
I could make these functions take a date param though, and then return 1 if the postedAt date is before strong voting was introduced, and 0 if the date is before self-voting was introduced. I think these rules have changed a bit over time though, and I couldn’t find a comprehensive timeline of when all the changes were introduced.
There are still two remaining ways this can be inaccurate:
The calculation assumes that all karma is received at the time the comment or post is first submitted, which might result in the calculating users’ self-votes as being worth more than they actually were at the time.
Users can go back and adjust their self-votes after they get enough karma to change how much their votes are worth. (You can unvote and re-vote on your own old stuff. This doesn’t change your own karma, but it can change the score on an individual post or comment by a small amount.)
Neat! I found it interesting that 8⁄10 of my top comments by karma are from pre-LW 2.0. At least some of that is because the rationality quotes threads were good for karma farming, but apparently there were also just way more votes being cast.
Not important, but I guess there’ll also be some inaccuracies to do with vote strength changing. (Out of interest, do you calculate vote strength based on current karma, or their fuzzily-back-computed karma at the time they made the comment/post?)
I do take the way the user’s vote strength can change over time into account, yes. The algorithm looks like:
Where
userSmallVotePoweranduserBigVotePowerare taken directly from the LW codebase.I could make these functions take a
dateparam though, and then return1if thepostedAtdate is before strong voting was introduced, and0if the date is before self-voting was introduced. I think these rules have changed a bit over time though, and I couldn’t find a comprehensive timeline of when all the changes were introduced.There are still two remaining ways this can be inaccurate:
The calculation assumes that all karma is received at the time the comment or post is first submitted, which might result in the calculating users’ self-votes as being worth more than they actually were at the time.
Users can go back and adjust their self-votes after they get enough karma to change how much their votes are worth. (You can unvote and re-vote on your own old stuff. This doesn’t change your own karma, but it can change the score on an individual post or comment by a small amount.)