Continuing our work to improve recommendations on YouTube

That’s why we update our recommendations system all the time—we want to make sure we’re suggesting videos that people actually want to watch.You might remember that a few years ago, viewers were getting frustrated with clickbaity videos with misleading titles and descriptions (“You won’t believe what happens next!”) As always, people can still access all videos that comply with our Community Guidelines and, when relevant, these videos may appear in recommendations for channel subscribers and in search results. These evaluators are trained using public guidelines and provide critical input on the quality of a video.This will be a gradual change and initially will only affect recommendations of a very small set of videos in the United States.

Source: youtube.googleblog.com