It could make her more empathetic towards the idea that not all Death Eaters might be completely evil. The fanfiction might show some grey areas in their characters.
Some in the wizarding world might see it as a chance for redemption for the Death Eater. If Hermione can reform him, it could be seen as a positive thing. But most would still be very cautious and watchful, fearing that it's all a ruse by the Death Eaters to cause more chaos.
Perhaps it's because the fanfiction offers a different perspective on the Death Eaters. It might show their motives or backstories in a new light that Hermione, being the inquisitive person she is, finds fascinating.
Hermione is a very intelligent and inquisitive character. Reading Prophet list fanfiction could make her more aware of the different interpretations and speculations within the wizarding community. This could lead to her re - evaluating some of her own views on the politics, social issues, or even the magical aspects that are often reported in the Prophet. For instance, if there's fanfiction about how a certain law reported in the Prophet could have been better implemented, it might make her think more deeply about the wizarding government's actions. It could also make her more empathetic towards the various characters in the wizarding world as she reads different takes on their situations in the fanfiction.
On the negative side, if some fanfiction contains misinformation or harmful ideas, she might have to be careful not to be influenced by them. However, if she's smart about it, she could use her study of fanfiction to bridge the gap between the official wizarding knowledge and the more creative, fan - based ideas. This could make her a sort of cultural ambassador between the two worlds, helping to bring new and exciting concepts into the mainstream wizarding society while also protecting it from the less desirable elements of fanfiction.
The wizarding world would be in chaos. Harry has been seen as the 'Chosen One' to defeat Voldemort. If he becomes a Death Eater, the hope that the wizarding world has placed in him would be shattered. People would lose faith in Dumbledore's judgment for believing in Harry all this time. The Order of the Phoenix would be severely demoralized as they have been fighting for Harry's cause.
Her death would likely cause a great shockwave throughout the wizarding world. As a member of the Potter family, she represents a symbol of hope and the future. Her death could lead to a sense of despair among many wizards and witches who saw her as a continuation of the Potter legacy. It might also inspire some to take up the fight against any remaining dark forces more vigorously, in her memory.
It could have a positive impact. It might inspire more open - mindedness among wizards towards Muggles. Wizards might start to see Muggles in a new light, realizing that they can form deep, loving relationships with them. For example, Hermione's friends could see how happy she is and be more accepting of Muggles in general.
If Hermione and Bill were married in fanfiction, their marriage could have a positive impact on the wizarding world. Hermione's knowledge of magic and Muggle - born perspective could bring new ideas. Bill, with his extensive experience, could help implement these ideas. For example, they might work on improving relations between wizards and Muggles, using Hermione's understanding of both worlds.
In some fanfictions, Hermione as a Death Eater is a very interesting and often controversial portrayal. Sometimes, it might show her being forced into the role due to some dark magic or blackmail. This completely flips her good - girl image from the original series and allows for a very different exploration of her character.
Bellatrix Lestrange is also a likely candidate. Her encounter with Hermione would be extremely intense. Given her loyalty to Voldemort and her rather unhinged nature, she would likely pose a serious threat to Hermione, but Hermione might also find a way to use Bellatrix's madness against her.