One consequence could be a divide in the fan community. Some fans who love fanfiction might feel alienated. They might see this as a lack of acceptance of their creative interpretations.
On a positive note for the official franchise, it might reinforce the integrity of the original story. By not forgiving fanfiction, it sends a message that the official version is the 'true' and 'pure' form of the Harry Potter story, which could potentially boost sales of official merchandise and new official releases related to the series.
One consequence could be that he loses out on potential rewards or recognition. Maybe he was expected to win, and his refusal disappoints his supporters. Another consequence might be that it changes the dynamics of the story, as other characters may have to step up or the competition may be less interesting without him.
One consequence could be that the story takes a different turn. Instead of the typical heroic plot, there might be a more character - centered exploration. Others around him may have to step up and fill the void. For example, his friends might become the heroes instead.
One possible consequence is that Harry could put himself in danger. Dumbledore is usually very wise, and his advice is often meant to protect Harry. By not listening, Harry may walk into a trap or face a more difficult situation than he expected.
He could be seen as an enemy. SHIELD might not take kindly to someone with Harry's potential abilities refusing to join them, and they could view him as a threat. This could lead to them trying to keep an eye on him or even take action against him if they think he's up to no good.
For Harry, he may face a lot of criticism from his friends and the wizarding community. They might see him as a heartbreaker or someone who doesn't value his relationships. This could lead to a strain on his friendships, especially with the Weasley family who he is very close to.
One reason could be copyright issues. The creators of Harry Potter own the rights to the characters and story, and fanfiction often uses these without permission.
A plotline could be that Ron betrays Harry's trust by sharing a secret with someone he shouldn't. Harry is initially furious but then realizes Ron was manipulated. Harry forgives Ron, and they work together to fix the mess caused by the shared secret. For example, if the secret was about a new spell they were developing, they have to stop the wrong people from using it.
One possible reason could be that fanfiction often takes creative liberties with the original story and characters. Harry Potter might be seen as a very personal creation of J.K. Rowling, and she (or in this case, the fictional Harry Potter) may not want it to be distorted in fan - made stories. Fanfiction can sometimes change the essence of the characters or the plot in ways that go against the original vision.
The consequences of inappropriate Harry Potter fanfiction are not to be underestimated. It can alienate a large portion of the fan community. Many fans view the Harry Potter series as something that has positive values like friendship, courage, and love. Inappropriate fanfiction can distort these values. Moreover, in a community that has a significant number of young fans, it can be a form of bad influence. It can also lead to internal conflicts within the fandom, with some fans supporting the creation of all kinds of fanfiction while others believing that inappropriate content should not be associated with the beloved Harry Potter series.
For fans, it means a loss of creative outlet. Many fans enjoy writing fanfiction as a way to explore the 'Harry Potter' world further, so they are disappointed. For example, a fan who had an interesting idea about a side story for Hagrid can no longer share it in the form of fanfiction.