It can damage the reputation of the 'Harry Potter' franchise. Since it's a beloved series, this kind of inappropriate fanfiction can make people view the whole 'Harry Potter' world in a negative light.
This type of fanfiction can also lead to a misrepresentation of the characters. The characters in 'Harry Potter' are role models in a sense, with their own values and personalities. Associating them with brothels through fanfiction completely distorts who they are supposed to be and can create a wrong image for those who are not familiar with the original series.
It can be disturbing to fans, especially younger ones. Fans expect fanfiction to expand on the positive aspects of the original, like the relationships between characters or new magical adventures. But this kind of content is not what they are looking for and can be very off - putting.
It can also lead to a bad reputation for the fan community. People might start to view the 'Harry Potter' fan community as a place that tolerates inappropriate content if such fanfiction is allowed to spread, which is not fair to the many fans who create positive and respectful fan works.
In certain fanfiction, the magical education system in 'Harry Potter' could have a negative impact on Britain. For example, if Hogwarts starts to produce poorly trained wizards due to a change in curriculum or teaching staff. These incompetent wizards might then go on to make mistakes in using magic in the real world, causing accidental damage to infrastructure and endangering lives in Britain.
One major negative impact is that it desecrates the characters and the world that J.K. Rowling created. The characters in Harry Potter are seen as heroes and role models by many, and this type of inappropriate fanfiction taints their image. Moreover, it can also contribute to a negative and harmful online environment where such disturbing content is allowed to exist, which may make some fans feel unsafe or disgusted.
It can make the community seem less family - friendly. Since the official Harry Potter works are aimed at a broad audience, this type of inappropriate fanfiction can give a wrong impression and drive away some fans, especially younger ones.
It can alienate a large portion of the fandom. Since the Harry Potter series has a broad audience including many young fans, sexy fanfiction can make them feel uncomfortable or excluded. It also may distort the original image of the story and characters.
It gives the fandom a bad reputation. The 'Harry Potter' series has a global following and is associated with positive things. Fanfiction like this makes the whole fandom seem seedy and inappropriate, which is unfair to the vast majority of fans who engage in positive and respectful fan activities, such as creating art, writing proper fanfiction about the characters' adventures or relationships within the appropriate context of the story.
It can turn away many fans, especially those who want to keep the purity of the 'Harry Potter' world. When such vulgar fanfiction exists, it makes people feel that the fandom is not a positive and clean place anymore. This kind of content also goes against the values that the original series promotes, like friendship, courage and love. And it might make some people, especially parents, reluctant to let their children be part of the 'Harry Potter' fandom.
It can damage the reputation of the 'Harry Potter' franchise. The original series is known for its positive values, and such inappropriate fanfiction can create a wrong association.
It is extremely disrespectful to the original 'Harry Potter' series. It can also be very off - putting for the vast majority of fans who enjoy the series for its positive themes like friendship, courage, and magic.
One negative impact is that it can damage the reputation of the 'Harry Potter' franchise. Fans who love the original pure and positive story may be put off by such improper fanfiction. Moreover, it can create an uncomfortable environment within the fan community as many will object to this kind of content that violates the essence of the series.