Is it in fact true that his comments are unusually upvoted? A quick look at Anna’s comments shows at least a sufficiently similar picture to doubt the outlier status you assume in this post. I suggest writing a script to collect data from user pages to learn more before taking this hypothesis for granted and trying to explain it (this will also give a better quantitative picture).
Note in addition that such analysis should be limited in scope by time. Early posts and comments would completely obliterate anything that could be learned about upvote patterns if they were considered.
Is it in fact true that his comments are unusually upvoted? A quick look at Anna’s comments shows at least a sufficiently similar picture to doubt the outlier status you assume in this post. I suggest writing a script to collect data from user pages to learn more before taking this hypothesis for granted and trying to explain it (this will also give a better quantitative picture).
Note in addition that such analysis should be limited in scope by time. Early posts and comments would completely obliterate anything that could be learned about upvote patterns if they were considered.
Posts, early or not, shouldn’t be considered at all in estimating comment karma.
Yet serve as a ‘container’ for comments.