I was going to say this! Letterboxd is the slickest and most fun media discovery platform I’ve seen. It’s so easy to stumble onto interesting recommendations, and the platform is straight-up fun to use. Look at these lists that Letterboxd users put together:
Insane Toni Collette dinner table cinematic universe
https://boxd.it/8DO8A
Or look at this list of films directed by women, organized by poster color:
https://boxd.it/lITC
Lots of fun stuff like that, but then also lists composed around incredibly specific vibes:
wlw movies that aren't period dramas and don't have sad endings
https://boxd.it/8nKBc
(The author of that list says “wlw = an umbrella term referring to lesbian, bi, pan, and queer women”; new to me)
Good movies with no sex scenes to watch with your parents
https://boxd.it/54Pcw
The lists themselves are a sort of smart commentary.
Letterboxd gets right the one thing that so many recommendation algorithms get wrong: I'm fickle, and I like different stuff at different times, and I also want new things that I didn't even know I liked. The article about StoryGraph mentions this: too often, algorithms assume you only want more of A) what you listened to last time, or B) what's popular (looking at you, Apple Music).
On a separate topic, one thing I'll say about ratings is that while I find good ratings to be worthless – generally any media of even the most middling quality will have rabid fans somewhere, especially if it's serialized (TV shows, book series, Star Wars, etc.), bad ratings are useful to me; if something is rated badly it's generally because it's truly boring and devoid of any value whatsoever.
Anyway, thanks to the top-level poster for the link to Story Graph. I hope it becomes useful, and in the meantime I'll keep pining for someone to disrupt the rest of Amazon’s book empire as well.