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.
In some fanfics, Harry might be made to hate Gryffindor perhaps because the author wants to explore an alternative personality for him. Maybe they want to show how the Gryffindor house's values, like bravado or recklessness, could be seen in a negative light from Harry's perspective.
Maybe he just doesn't like how some fanfictions distort his real experiences in Gryffindor. He might feel that they don't accurately represent his relationships with his housemates or the true nature of the Gryffindor house.
Well, it could be that the fanfiction writer is trying to subvert the traditional narrative. Harry has always been the hero of Gryffindor, but in this new take, he hates it. Maybe he sees the flaws in Gryffindor that are often overlooked in the original story, like the over - emphasis on courage which can sometimes lead to recklessness and he doesn't like being part of a house with such a one - dimensional view of what's important.
One reason could be that the fanfic distorts the characters he knows well from Gryffindor. For instance, if it changes the personalities of his friends in Gryffindor in a way that doesn't seem right to him.
In some fanfics, Harry might hate Dumbledore because he feels Dumbledore has been using him all along as a tool to defeat Voldemort. Dumbledore has been making decisions for Harry without fully considering Harry's feelings and desires. For example, he didn't tell Harry about the prophecy until it was almost too late, and Harry might see this as a form of manipulation.
It could be that in the fanfic's plot, McGonagall has some past connection to Harry's enemies. So, her hatred towards Harry is a result of her loyalty to those she has a history with. This would create a lot of drama and conflict within the fanfic's story.
Well, it could be that he has seen some really bad magic fanfic. Some fanfic might be full of inaccuracies about magic, and as someone who has a deep connection to magic, it annoys him. For example, if a fanfic misrepresents a spell or a magical creature that he is familiar with, it would make him dislike it.
It could be that the writer wants to explore different character dynamics within Gryffindor without Harry overshadowing them. Maybe they want to focus on the other Gryffindor students' growth and relationships that are often in Harry's shadow in the original story.
It could be due to a sense of abandonment. Fanfic writers might explore the idea that Harry, growing up without his parents, feels resentful. He may see other kids with their families and, in his confusion and pain, start to hate his parents for leaving him alone in the world, even though it was not their choice.
Maybe he hates it because it often distorts the real story or characters he knows. Fanfics can take the story in wild directions that don't align with his own experiences.