These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Ore no Kanojo to Osananajimi ga Shuraba Sugiru
Old Shame: In-universe example with Eita's journal. Masuzu somehow managed to get a hold of it and uses it to Black Mail him note She threatens to release the contents online should he refuse to, and he considers the journal contents to be very embarrassing work. into doing the things she wants. She further humiliates him by telling others about the stuff written inside of it, claiming that the journal belongs to an old ex-boyfriend. Every time she reads from it, he squirms uncomfortably around it, even though the other characters who hear about it don't seem too worried about what was written in it.
Ship-to-Ship Combat: The various pairings of Eita and one of the girls by fans can get quite heated on various parts of the internet.