Ginny may hate Harry Potter fanfiction as it can deviate from the authenticity of the original narrative. The real events and emotions she experienced are important to her, and fanfiction might water them down or distort them, making her feel that the true essence of her life and relationships is being misrepresented.
She might hate it because it could change the way people see her character. In the original story, she is a strong and independent person, but fanfiction might portray her in a wrong way.
It could be due to jealousy. Perhaps Ginny has been spending a lot of time with another character, and Harry misinterprets their relationship, leading to his anger. In fanfiction, the writers often play with such emotions to create drama.
Maybe she hates it because it often distorts the real story and characters. Fanfiction might create out - of - character situations for her or Harry, which she can't stand as she values their real relationship and the original story so much.
In some fanfictions, Ginny might be written to betray Harry because of a prophecy. The prophecy could mislead her into thinking that Harry was going to bring doom, and so she decides to act against him to prevent that. It's a different way of looking at their relationship compared to the original story, where their bond was based on love and trust.
One reason could be that he doesn't like the spotlight that comes with being a Gryffindor. In the original story, Gryffindors are often in the limelight, and in fanfiction, he might be tired of all the attention.
One possible reason could be a misunderstanding. Maybe Ginny is under the influence of a powerful dark magic that makes her act against Harry without her full control. For example, a powerful mind - controlling spell could be involved.
In some fanfictions, Ginny might be under the influence of a powerful and dangerous spell. Harry, with his knowledge of magic and his strong will, might search for a counter - spell all over the wizarding world. He could enlist the help of his friends, like Hermione and Ron, to finally break the spell and save Ginny. It could also be that Ginny is kidnapped by a group of Death Eaters, and Harry embarks on a dangerous mission to find their hideout and rescue her.
In the fanfiction world, it could be a prophecy. There might be a prophecy that says Harry's presence in Ginny's life will bring great harm to her or the wizarding world. So, for the greater good, Harry leaves. He believes that by sacrificing his relationship with Ginny, he can save her and everyone else. It's a very noble but also a very heart - breaking decision.
Maybe in fanfiction, Ginny discovers that Harry still has some unresolved feelings for Hermione. This could create a rift between them and lead to a divorce. It's not uncommon in fan - created stories to explore complex love triangles that were not fully resolved in the original series.
It could also be that the fanfic might interfere with the way he wants his story to be remembered. His adventures at Hogwarts were real and important to him, and when fanfic changes the narrative, it's like his story is being disrespected. For example, if a fanfic portrays him as cowardly when he was actually brave, that would surely make him dislike it.
One possible reason is to show a contrast. Since Bill is often seen as a reliable and good - natured character in the original series, making him 'suck' in fanfiction can create a shock value and make the story more interesting. It can also be a way to explore the flaws of a seemingly perfect character.