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.
Particularly those who are proud of their non reading status
I know a few people like this. It’s so weird to be proud that you don’t read. I even had this one weirdo say to me “I vowed to never read another book after University” and I thought, well this is the most r/iamverysmart thing I’ve ever encountered offline.