You always get some individual results like those discussed above, when you have a new panel voting on a list for the first time. Then they see the results of their vote, and adjust their votes a bit the next time around on some of the outliers, to conform a bit more to what "experts" expect.
Sean, I'm surprised to see you of all people using the phrase "a top 100 course". You know that's a meaningless expression. There are lots of excellent courses, and some of them make these lists, but there is no bar to clear.