Dislike and Shame are essentially how downvotes on reddit (and HN?) work. I’m sure somewhere this has been analyzed in depth, but a few years ago it seems the

Dislike and Shame are essentially how downvotes on reddit (and HN?) work. I’m sure somewhere this has been analyzed in depth, but a few years ago it seems the YouTube algorithm underwent a fundamental change in which it shifted from recommending videos based on what other people viewing a video liked to recommending videos based only on your own personal history.