I can confirm that I've upvoted your comment and did not see a change to your karma. However, when I upvote a submission and refresh the page, I always see the

I can confirm that I've upvoted your comment and did not see a change to your karma. However, when I upvote a submission and refresh the page, I always see the submission's points go up. I can't tell whether my comment votes are being ignored (or diminished or delayed) by HN, or if this is just the result of how HN tabulates points and karma. (I don't think comment/submission upvotes from users with less than 10 or 11 karma count at all.[1] This is also how I remembered it when I first joined HN.) Reddit uses a formula to transform upvotes into karma that awards less karma for each additional upvote.[2] I suspect that HN uses 1 or more similar formulas to transform (i) comment upvotes -> comment points, and/or (ii) comment points -> user karma. Since points and karma are only displayed as integers, the formula would sometimes prevent your comment upvote from visibly affecting the user's karma. I don't think HN uses a formula to convert submission upvotes -> submission points, though I could be wrong. On the other hand, we can easily verify that the submission points -> user karma transformation is not 1:1 by looking at a throwaway account that has only made 1 submission and no comments.[3] If dang could clarify what's going on, I would greatly appreciate it! [1] https://news.ycombinator.com/item?id=439396 https://news.ycombinator.com/item?id=439396 [2] https://www.reddit.com/r/TheoryOfReddit/comments/e9c88r/update_2_i_found_a_formula_that_will_tell_you_the/ https://www.reddit.com/r/TheoryOfReddit/comments/e9c88r/upda... [3] https://news.ycombinator.com/user?id=throwawaygoaway https://news.ycombinator.com/user?id=throwawaygoaway (300 karma) / https://news.ycombinator.com/submitted?id=throwawaygoaway https://news.ycombinator.com/submitted?id=throwawaygoaway (911 points)