One consequence could be legal issues. Fanfic creators might have the right to sue if their work is used without permission. Another consequence is that it can damage the relationship between the game developers and the fan community. Fans may feel betrayed if their creative works are exploited.
The 'Harry Potter game' might be exploiting fanfic by taking advantage of the free marketing that fanfictions provide. Fanfics create a lot of buzz and interest around the 'Harry Potter' universe. If the game then uses ideas from these fan - created stories, like a particular version of Hogwarts or a new adventure that a fanfic writer imagined, without compensating the fanfic creators or respecting their rights, it's exploitation.
On the positive side, he may gain more opportunities to learn advanced magic sooner. This could make him a more powerful wizard in the long run. But he also has to deal with the jealousy of some students. They might think he's getting special treatment, which could lead to some bullying or isolation. Also, the professors might have higher expectations of him, which can be both motivating and nerve - wracking.
One potential consequence could be a negative impact on the original 'Harry Potter' brand image. If the fanfic contains disturbing or inappropriate content, it might turn some fans away from the overall franchise. Another consequence could be the spread of harmful ideas within the fan community. For example, if it promotes toxic relationships or unethical behavior, it could influence younger or more impressionable fans in a bad way.
The consequences can be quite serious. Firstly, it can really hurt the feelings of the fanfic writers. They put a lot of time and effort into creating these stories. Secondly, it can lead to a divide in the fandom. Those who make fun might be seen as bullies, and this can cause tension. And finally, it can have a negative impact on the perception of the Harry Potter fandom as a whole. People outside the fandom might see it as a place full of unkindness, which is far from the truth as the series itself promotes love, friendship and acceptance.
In a fanfic, a Harry Potter potion accident could lead to all sorts of strange consequences. For example, the character might end up with unexpected magical abilities or physical transformations. Maybe they accidentally turn into an animal, like Neville did in one of the real books but in a more extreme way. It could also affect their relationships, as others might be scared or fascinated by the new form or power they possess.
In the fanfic, the Dementors could also be a major factor in the consequences. Since Harry escaped from their custody, they might be more vigilant and harsher in their patrols. This could lead to a more oppressive atmosphere in the wizarding world, with people living in fear of the Dementors' increased presence. Also, Voldemort or his followers might try to take advantage of the chaos caused by Harry's escape to further their own dark agendas.
One consequence is that Harry could lose his confidence. Without the positive reinforcement from his friends during summer, he may doubt his abilities more. Another is that he might become more rebellious. Feeling isolated and misunderstood, he could act out against the rules of Hogwarts or the wizarding world in general.
One consequence could be a change in the wizard or witch's magical abilities. Since parents play a role in a wizard's heritage, changing them might mess with their natural powers. Another could be a shift in their social standing within the wizarding world.
He could lose the trust of his friends. In the Harry Potter world, his friends know him as a good person. Using Crucio would shock them and make them question his integrity.