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Study suggests YouTube’s dislike button isn’t doing what you want it to do

A new study by Firefox developer Mozilla suggests that YouTube’s video moderation tools are ineffective, as the website will continue to recommend videos you’re not interested in.

The way it’s supposed to work is that users have more tools to teach YouTube’s enigmatic algorithm what they don’t want to see. You have options like the Dislike button, the Don’t Recommend Channel option, and the ability to remove videos from your account history. But according to Mozilla’s survey (opens in new tab), users still get these “bad recommendations”. At best, YouTube’s tools cut unwanted videos by almost half. At its worst, YouTube does the opposite: it increases the number of unwanted videos you’ll see.