Some people write 'kakashi sakura hate fanfic' because they simply don't like the character dynamic between them in the original work. Maybe they think Sakura is too whiny or that Kakashi is too aloof towards her, and they want to explore a more negative version of their relationship.
Maybe Karin has some personal reasons. For example, she might not like Sakura's character in the original work, so she also dislikes fanfic related to Sakura.
Well, it could be that in certain fanfics, the writers want to create a more complex and angsty story. Sasuke's character is often seen as a brooding and driven one. So, they make him hate Sakura perhaps because they think it adds an interesting dynamic. For example, if Sakura is constantly trying to get close to him but he hates her, it can lead to a lot of conflict and emotional turmoil in the story.
Another reason could be that she values the authenticity of the original Naruto narrative. Fanfictions are often the product of fans' wild imaginations and might not align with the official story. She might be a purist when it comes to the Naruto story she is a part of, and thus hates fanfiction that strays too far from the original.
Maybe in the fanfic, Itachi has done something that goes against Sakura's beliefs or values. For example, he might have made a decision that put her friends in danger.
Well, in fanfic, the writer can take creative liberties. It could be that Naruto has grown and evolved in a different way than in the original story. He might have seen Sakura's flaws more clearly over time. For example, her obsession with Sasuke could be seen as a negative trait that affects the team dynamic. And as Naruto values the team highly, this could cause him to develop a dislike and eventually hate for Sakura.
It could be that in the fanfiction, Naruto's character is developed in a way that Sakura, within the sasunaru concept, doesn't approve. For instance, if the fanfiction makes Naruto too weak or too different from his original self. Also, if the fanfiction focuses too much on certain relationships that she doesn't like, she would hate it.
Some people hate Facebook stories because they can be very intrusive. They pop up and take over your screen without much warning. Also, they often show a lot of content that might not be relevant to the user, like sponsored stories or updates from people you're not really interested in.
Well, Comic Sans is often seen as childish and not suitable for many formal or important contexts. Its design is kind of goofy and doesn't have a polished look.
Some people might hate visual novels because they find the gameplay or interaction limited. Maybe they prefer more active or challenging forms of entertainment.