It could also be due to the overall tone and plot of the fanfiction. If the fanfiction has a dark or negative theme and Yasaka is a part of that in a way that makes Naruto seem to 'hate' her, it might be because the writer wants to create some sort of conflict. However, this may not align with the original essence of Naruto's character, who usually tries to understand and befriend rather than hate without a good reason.
One possible reason could be that the fanfiction misrepresents the Uzumaki clan or Naruto's connection to it. Naruto has a deep and complex relationship with his Uzumaki heritage, and if the fanfiction distorts it, he might dislike it.
Maybe Naruto, as a character with his own set of values and storylines in the original Naruto universe, clashes with the concepts often presented in Olympus - related fanfiction. For example, the Naruto world has its own unique power systems, cultures and ethics which might be very different from what is typically found in stories related to Olympus.
Well, it could be that the fanfiction distorts the original Naruto story in ways that are unappealing. Maybe it goes against the core values or the character development in the Naruto universe.
Maybe Naruto has some personality clashes with the Hyuuga characters in the fanfic. For example, the Hyuuga clan is known for their traditional and sometimes rigid ways, which might go against Naruto's more free - spirited nature.
One possible reason could be that the fanfiction misrepresents Sakura's character. Maybe it portrays her in a way that she would never act in the original context of the series, which makes her seem out of character and thus causes dislike. Another reason might be that the fanfiction focuses too much on other members of Team 7 and sidelines Sakura, making her seem less important or relevant than she actually is in the story.
Well, one reason could be that fanfiction often takes creative liberties that might distort the original relationship between Poseidon and Percy in the official story. It could be that Poseidon is a very complex character in the original, and fanfiction simplifies or misrepresents him in a way that makes it seem like he 'hates' Percy in those fictional interpretations.
It could be that the portrayal of Konoha in the fanfiction goes against Sakura's values. Suppose the fanfiction shows Konoha as a place full of corruption or immoral behavior, and Sakura, being a character with her own set of beliefs, would naturally hate it.
One possible reason could be a divergence in the characters' personalities as portrayed in the fanfiction. Maybe the writer made Molly have traits that Harry would realistically dislike. For example, if Molly was written as overly controlling or mean-spirited towards Harry in the fanfic.
It might be that Bella simply doesn't like the overly commercialized and cheery nature of Christmas that is often portrayed in fanfiction. She could be a more somber character who prefers a different kind of aesthetic, and the typical Christmas fluff in fanfiction goes against her character.
Maybe it's because of the different power systems. Naruto has chakra and his ninja abilities, and Rias has her devil powers. If in the fanfiction these power systems are not properly integrated or if one overshadows the other in an unappealing way, Naruto could be depicted as hating Rias. Say, if Rias' devil powers are made to seem too overpowering and it goes against Naruto's sense of fairness in combat, it could lead to such a scenario.