I’ll go with the low-hanging fruit: Mein Kampf. I’ve read it, cover to cover. As a piece of propaganda, it’s good. As an example of good writing? Absolutely not (though I will admit I have only read it in translation). Oh, and the whole fascist, racist, and generally shitty worldview of the author that he infuses into the text. And the fact that the author is literally Hitler. You 5-star that book? You’re a Nazi. Period. And as a Jewish person, I don’t look too kindly on them.
Right. I think Ready Player One could be a deal breaker if you’re only interested in dating another reader, because the person probably doesn’t read that much, or maybe they have unsophisticated taste. But it’s not on the level of “this person has something wrong with them” like the other examples. So it’s not completely out of the question in this thread but it’s definitely more of a personal preference thing.