This isn't a huge revelation or anything, as it's rather obvious and most people know it (well, suspect it, as it's rather obviously not an officially stated reason), but let's document it here anyway. One of the most visible and used features of YouTube, which allows interaction between content creators and their viewers, perhaps second only to the comment section, are the "like" and "dislike" buttons. These numbers are quite useful and telling because their magnitude and relative proportion tells something about how well the video has been received among the wider audience: If both numbers are very small, then it tells that either the video hasn't had many views overall, or that people aren't really all that interested in rating it. If one of the numbers is huge and the other only a small fraction of it, it tells that the video is either enormously liked or disliked. If both numbers are large and about equal, it speaks of a probably controv...