Some sort of online community for people to practice reading, especially critically so they practice skills like recognizing subtext, irony, themes, etc, could probably be cool
Unfortunately, the people on a text based platform like Lemmy probably have better than average reading skills. The people who need more help probably stick to video.
Also there's a surprising amount of anti-intellectualism, sometimes, where people say things like "it's just a story it doesn't have any deeper meaning!". Fundamental misunderstanding of how meaning works. (You don't find the correct answer. You make up an answer and justify it with the text.)
Absolute nightmare