It could be that the fanfiction writer is exploring a 'what - if' scenario where Gohan and Videl's personalities clash in a way that isn't shown in the original series. Say, Videl becomes overly competitive in a way that Gohan dislikes, leading to his hatred in the fan - made story.
Maybe Tails hates fanfiction because it often goes against the original vision of the character. Fanfictions might portray him in ways that he doesn't like or in situations that are inconsistent with the official story.
Well, perhaps in fanfiction, their characters are often misrepresented. Maybe Percy's personality traits are distorted in a way that makes him seem out of character when paired with Jason, which could lead to Percy seeming to 'hate' Jason in those stories.
In some fanfics, Bucky might be written to hate Steve due to misinterpretations or plot twists. Maybe the writer wants to explore a darker, more conflict - ridden relationship. It could be that Bucky has been brainwashed in the fanfic and his altered mind now sees Steve as an enemy, or there could be some past event that was misconstrued and led to this hatred.
Another aspect could be related to past traumas. Naruto has been through a lot, and if the Konoha 11, even unintentionally, reminded him of some of the negative experiences he had in Konoha, like the ostracism he faced as a child, it could make him hate them in the fanfiction.
In some fanfiction, Naruto might be depicted as hating toads because the author wants to explore an alternative personality or backstory for him. Maybe they want to show a more rebellious side of Naruto who resents the toads for their role in his training or for the demands they place on him.
Well, perhaps yoh has had some bad experiences with human fanfiction in the past. Maybe yoh read some really poor - quality ones that were full of clichés or had terrible writing. Or it could be that yoh simply prefers other forms of literature or storytelling over human fanfiction. There are so many different types of creative works out there, and yoh might just be more drawn to non - fanfiction works that deal with humans in a more 'original' way, like classic novels or biographies.
Maybe he thinks it distorts the real story of the Avengers. Fanfiction often takes the original story and characters in unexpected directions, which might not sit well with him.
Perhaps Harry has his own vision of Gryffindor and the fanfics he's seen don't align with it. He might have a deep - seated understanding of what Gryffindor means to him, like courage, loyalty, and friendship in a very personal way. The fanfics, on the other hand, might focus on more superficial or inappropriate aspects of Gryffindor for his taste, such as focusing too much on power plays or false bravado rather than the true essence of what makes Gryffindor great.
Maybe Ash has a particular view of his own character and the way Cynthia is portrayed in fanfiction doesn't align with his idea. He might feel that the fanfiction distorts their characters or the relationship between them in some way.