I feel that I voted very much against the majority here! My big, big hate in stories is a knowledge mismatch between the narrator and the reader, I find it actually upsetting a lot of the time. (That may be a weird word for it, but it's the closest I can find.) I generally seriously dislike POV narrators who are purposely eliding something important* (my wife has never persuaded me to read more of the series after The Thief, for instance), and also I think I may be the only person who finds the Steerswoman books incredibly frustrating for the opposite reason. I think I don't really like having the conflicting understandings in my brain? I also don't enjoy POV characters where I think you're supposed to realise gradually that they're actually awful people, because I usually don't realise it until very late on and have been getting more confused and frustrated as their interactions with others and the results make less and less sense to me narratively. (This is like Peak Autism here. But I do struggle with inferring characters thoughts and feelings from text when they're not clearly presented, and in these situations I do end up feeling purposefully tricked and resentful.)

*My exception to this trope is The Raven Tower, which I love. I think mostly the difference is that the structure with part of the story told in the past meant that I knew that of course I was still learning lots of things about the character as I went along, so the denoument was a final delightful reveal rather than a "surprise, I the writer forced you to misread this all along".