Why would an author write 'Harry Potter Ignored Dumbledore' fanfiction?

One possible scenario could be that Harry feels betrayed by Dumbledore for some reason. Maybe he discovers some secrets that Dumbledore has been keeping from him, like the true nature of his family's past or the real intentions behind certain events at Hogwarts. So, in a fit of anger and disillusionment, he decides to ignore Dumbledore.

Dumbledore might underestimate it because he's used to the 'official' version of the wizarding world. Fanfiction can be full of wild ideas that don't fit his traditional view.

In the world of fanfiction, many readers have specific expectations based on the source material. Since J.K. Rowling created Harry Potter as a male, some fans may be less interested in a female version. Additionally, there might be a lack of exposure for Fem Harry Potter fanfictions. If they're not promoted well within the fan community, they tend to be ignored.

It might be ignored because it has a very unoriginal plot. Fans are looking for something new and exciting in fanfiction, not just a rehash of the original stories.

The author might write this plot to create some sort of conflict or drama. It can add an interesting twist to the story. Maybe the friends are under some sort of spell or misinformation, and Hermione has to figure out how to fix things, which can lead to an exciting adventure.

Maybe he takes it out of a sense of duty. Harry might feel that he needs to carry on Dumbledore's legacy and that using his wand is a way to do that. He could believe that Dumbledore's wand holds the power to defeat the remaining threats to the wizarding world.

Maybe it's a plot twist to create more drama and conflict. Fanfiction authors often come up with wild ideas to make the story more exciting.

To explore different aspects of the characters. By making Harry wear girl clothes, the author might be trying to show his adaptability or his ability to break gender norms. It could also be a way to explore how the other characters in the story react to such a change, which can give more depth to their relationships.

In some fanfictions, Dumbledore might bow out of respect for a powerful magical entity or a person with extraordinary abilities. It could also be a sign of his humility in the face of a situation where he realizes he is not the most knowledgeable or powerful.

Some people might write it to explore a darker, more alternative take on the characters. They could be interested in seeing how the story would change if Dumbledore had a more sinister side. It's a way to break the established perception of the characters.