> Hell, Netflix used to have an option where people could leave reviews on the movies they watched There's a very specific reason Netflix removed reviews / sta

> Hell, Netflix used to have an option where people could leave reviews on the movies they watched There's a very specific reason Netflix removed reviews / star ratings in favour of a simple thumbs up & down system: those were mostly used to recommend content, and they found that ratings are uninformative (something true for most recommender system applications) and even harmful because giving a precise score keeps many people from giving feedback -> lowering the quality of recommendations. See this article [1]. The same train of thought would go for something like Google Sidewiki: it likely just didn't get enough traction (vs digg, reddit, etc.) [1] https://www.whats-on-netflix.com/news/why-netflix-removed-its-5-star-ratings/ https://www.whats-on-netflix.com/news/why-netflix-removed-it...