Question about karma from stories posted to HN

Yesterday morning I had 2633 karma points. After posting this[1] yesterday, I have 2688 karma points, 55 points more than yesterday. However, yesterday's post got 90 points so I'm wondering how the mechanism to deal with "various types of abuse"[2] factors into explaining the missing 35 votes. [1] https://news.ycombinator.com/item?id=10099931 [2] https://news.ycombinator.com/newsfaq.html