They might be outraged. Fanfiction often plays with the established lore and characters, and the Death Eaters, being firm believers in pure - blood supremacy and the Dark Lord's ways, would likely be horrified by any deviation from what they see as the 'true' story. They could see it as a mockery of their beliefs and actions.
Well, some of the more intelligent Death Eaters might find it interesting in a way. They could view it as a way to understand how Muggles or those with different views perceive their world. But most would probably be disgusted. They are so entrenched in their dark and evil ways that any new or different interpretations of their story would seem wrong to them. Fanfiction might show them in a less than flattering light, which they would not tolerate.
Well, they might find it completely absurd. The Death Eaters are so entrenched in their dark and violent ways, and Harry Potter fanfiction can range from fluffy, light - hearted stories to complex, morally - gray tales. They'd probably see the fanfiction as a waste of time or even a perversion of what they consider the 'true' wizarding world order. They are all about the dark magic and subjugation, and fanfiction often has a more inclusive and creative approach that would likely baffle them.
One consequence could be a major shift in the wizarding world's perception of good and evil. If Harry saves the Death Eaters, people would have to re - evaluate what it means to be a 'bad' wizard. There would be a lot of distrust at first, but over time, it could lead to a more forgiving society.
Well, one possibility could be that he is forced to join them under some kind of dark magic threat. Maybe Voldemort has found a way to control his mind and he has no choice but to follow their orders. This would lead to a lot of internal conflict for Harry as he struggles with his own values.
Their view could become more confused. Fanfiction can present all sorts of alternate universes and character developments. The Death Eaters, used to a very specific view of the wizarding world under Voldemort, would find it hard to accept different versions. They might see the wizarding world in fanfiction as a chaotic and wrong place, which would make them double down on their own views to feel more secure.
Well, some of them like Ron might be a bit skeptical at first. He's used to the 'real' Harry Potter world. But as he reads on, he might get into it. Fred and George, on the other hand, would probably look for ideas in the fanfiction that they could use for their pranks or joke products. Ginny would likely enjoy reading about different versions of Harry and her own character development in the fan - made stories.
They might be quite amused. The Marauders were a mischievous bunch, and seeing different interpretations of their world in fanfiction could be a source of great entertainment for them. They'd probably laugh at some of the wilder ideas and might even be impressed by the creativity of the fans.
Well, one possibility is that Harry would be forced to learn dark magic. The Death Eaters might try to mold him into one of their own, but Harry's strong sense of good might resist. He could secretly plot against them while pretending to go along with their ways.
If Death Eaters read the books fanfiction, they could potentially find new ideas for their own dark deeds. However, they might also be exposed to different values and worldviews presented in the fanfiction that could cause some internal conflict. For example, if a fanfiction shows a character they admire choosing a path of redemption, it could make them question their own loyalty to the Dark Lord.
They would probably be quite amused. It would be strange for them to see different interpretations of their own lives and the world they lived in.
A possible motive could be self - preservation. If they believe that Voldemort's downfall is inevitable and that by saving Harry, they can gain some form of leniency from the side that opposes Voldemort. They might think that Harry has enough influence to spare their lives if they help him.