Not quite? Mulholland drive for example, was widely praised by critics and is remembered fondly by film nerds, but is not in most senses “popular”.
I’m not arguing that ratings are perfect, I largely agree with you; just that they’re a weird measurement and not one largely of popularity.
Goodreads is kind of a weird space which shows that the popular vote is kind of useless. It’s hard to find a good book based on ratings. Everything seems to be either 4+ stars or garbage. The Fault in our Stars probably has a better rating than print copies of Hamlet. Actually, all classics seem to hover around 3.68 stars. Never 2. In fact, I don’t think any books published in the history of the world have a rating less than 3.
Anyways, the language you google in heavily affects recommendations. Searching in general is not a useful way to find anything cool. It’s much better to happen upon a good source of reviews or criticism which align with whatever gets your rocks off and settle for curated entertainment/art.
Clearly though, different movies and books server different purposes. Is Schindlers List a better movie than Airplane! Sure, but I'm not going to put on the former when I want a few laughs.
This is particularly pronounced whenever there are any consequences attached to the ratings. If you give anything but 5 to your Uber driver, you're risking them losing their job. If you give anything but 5 on an e-commerce platform, the seller may lose a lot of money. 5 being the "neutral" score became normalized.
I've come to the (sad) conclusion that review systems are inaccurate, even when well intended. There was likely a moment during their existence where they were accurate. I would guesstimate this moment is generally before it gained momentum. E.g. early days of IMDB, early days of Amazon, and early days of tbat German law mentioned earlier (I don't know the name).
Since Metacritic is an aggregation of paid and amateur reviewers alike, it might very well be more accurate.
I really think GoodReads is the exception to this though. When I look through other people’s ratings I frequently see them using the full spectrum.
Furthermore, it’s very common for written reviews to say that a book really deserves some fractional number of stars, but Goodreads forced them to round.
Of course, the average ratings suck anyway...
Compare linking via epigraph in https://news.ycombinator.com/item?id=24501978
Of the people I know who have seen a David Lynch movie, I haven’t met anyone who enjoyed them. Speaking for myself, Mulholland Drive is definitely in the running for worst movie I’ve ever seen.
Even worse, a rating could be because the raters were most of the people to notice a thing, but in a negative way. All ratings on the internet about things that center women or racial minorities should be ignored. Because of the overwhelming population of white male (and incel-type right-wing internet subculture) commenters, they can get a hate-boner about a movie or tv show just from the title or subject, network with each other, and then be responsible for an order of magnitude more ratings on the thing than the people who the thing was made for.
I think the best way to find other things you like is to figure out what the authors of the things you like themselves like or have worked on. That stuff is hard to find, though. You can get it from references within the works or from interviews and biographies, but it's nothing that algorithms are extracting yet.
I also find a habit from my old punk rock days to work: find other people who were working in the same place at around the same time. You may actually just like the zeitgeist, but have assigned it entirely to the only authors from that place/time that you've been exposed to.
Critic's reviews I find to be worthless, or at least their text. The ideal critic for me is one that just says "yes" or "no" to a long list of movies. You'll figure out from skimming the list whether that critic is a good critic for you. I often find Ebert's reviews a pleasure to read, but I rarely agree with him about the films themselves. Artistic criticism is generally a writing exercise imo, not anything with an actual relationship to the thing being commented upon. I'd put it 3rd in the ranking of most meaningless journalism, right below sports writing, which is still more meaningful than the ultimate: analysis of the reasons behind today's market movements.
... but the average rating is a measure of popularity :/. The best movies I have ever seen are rated poorly, because most people didn't understand them or they weren't "easy" to watch; if you want to find good content, you need to read reviews and find people whose recommendations matter to you, not work off ratings.