Meta karma-related question that occurred to me on reading the post on Retributive Downvoting, but which didn't really fit there: One thing that I sometimes do in upvoting/downvoting is to calibrate my vote based on how many up or down votes the comment already has; for example, if a comment is at plus 10, but I think it's only a tiny bit good, I might downvote it; whereas if a comment is at -10, but I think it's only a little bit bad, I may upvote it (whereas if the little bit good comment was at 1-2, I would upvote, and it the little bit bad comment was at 0-1, I would downvote it).

But perhaps that is a wrong approach. Indeed, it would probably be inaccurate with a very new comment, but I am often rather late in reading through comment threads, and would guess that by the time I read through many comments have settled close to their ultimate score. Does anyone else do that, or have a view whether it is a correct or incorrect approach?