I mean, Eliezer is an impressive writer whose style resonates with many people. And it's indeed frustrating to see idiocy in fiction, like in Star Trek where the most powerful weapon is obviously the teleporter but no one acknowledges that. We can all agree on these things.
The problem is that removing idiocy doesn't automatically make a piece of fiction good. It seems like Eliezer has convinced a ton of nerds (I hate the word but let's roll with it) that they can succeed in writing fiction by applying this one weird trick. But you need much more than that.
Our enjoyment of stories comes mainly from emotions, which we then rationalize by saying "I liked that story because the hero was really smart". A few people have noticed that the actual plotlines in HPMOR are kinda weak, and it's really the characterization and "epic" style that makes the story work. A version of HPMOR that was just "smart", with better intrigue but less emotional appeal, wouldn't attract nearly as many people. A version of Worm without the raw moments of suffering would be kinda pointless to read. These things don't come for free if you just try to write rationally.
To conclude, here's a few recommendations:
- If you want to read a work that succeeds purely based on rationality, without much emotion or characterization, check out The Metropolitan Man. It's probably the best example of its kind, and a damn good read too.
- If you know your way around the Harry Potter universe and want another good fanfic in that setting, try The Seventh Horcrux. It doesn't give a fuck about rationality, but it's so amazing that you won't care.
- If you want something extremely smart, well written, and emotional at the same time, read anything by Ted Chiang. I'll never stop recommending him.