i just ask someone who read it already if it has shit i don't like in it https://twitter.com/GemOfAmara/status/1330011066718433280
i don't read a ton in subgenres i find tend to have upsetting content, but when i do i just text whoever recommended it to ask if it has that in it
alternately if it's a popular enough book to have an extensive tv tropes page just do a in page search for "ending"
you get some weird dm conversations being like "hey so in that book you mentioned, does it have any of extremely specific type of torture?" but they always get it, i feel like "does it have a happy ending" is much easier
i think "i want all media to be ao3" is a shitty demand
"please tell me in advance how many beds there are"
this is what happens when your politics revolve around everyone being valid, you see shit like this and are like "but people need it:/"
when the only thing you know how to do is uwu valid and not actually anything concrete you give credence to ridiculously bullshit instead of actually working from a point of seeing legitimate problems and fixing them, you just uwu valid at people
i think the way we've gone from "people need ways to know about potentially upsetting content in media they consume" to "people should get an ao3 list of everything contained in a work of fiction so they don't accidentally read a book they don't like" is a problem