One reason could be for the sake of creating drama. Writers might blame Naruto in fanfiction to stir up conflict and make the story more interesting. For example, they could make him the cause of a rift between other characters.
It could mean that the character Naruto in some context is being held responsible or criticized in fan - made fictional works. Maybe some fanfictions depict Naruto in a way that goes against his original character traits and this has led to a perception of 'blame' within the fanfiction community.
In some Twilight fanfiction, Edward might be blamed because of his over - protective nature. He often makes decisions for Bella without fully considering her own desires, which can be seen as controlling and thus draw blame.
Well, in a lot of fanfiction, the idea is that Tony's creation of Ultron was a complex situation. He was acting out of fear for the safety of the Earth. The Avengers had faced many threats, and he thought an AI like Ultron could be a preemptive defense. So, the fanfiction authors don't blame him as they understand his motivation and the unforeseen consequences that came with his experiment.
He might try to prove his innocence by gathering evidence. For example, if his sisters wrongly blame him for breaking something, he could look for proof that he wasn't even near the item when it broke.
I'm not entirely sure specifically about Sam from Supernatural blaming fanfiction. It could be that in some fan - created stories, the character of Sam was misrepresented in a way that the actor or the show's official stance didn't like. But without more context, it's hard to say for sure.
In Umbrella Academy fanfiction when Vanya is blamed, it can add a lot of depth to the story. Her character is already complex in the original series. Fanfic writers may use the blaming aspect to show her isolation and struggle. Maybe they have her face more unjust treatment from her siblings or other characters. This can lead to interesting character development as she either tries to prove herself or becomes more withdrawn. It also allows for exploration of themes like prejudice and misunderstanding within the context of the Umbrella Academy universe.
A common scenario is when Bella gets into danger because of Edward's vampire - related enemies. Since he's a vampire, he has foes, and they often target Bella to get to him. In fanfiction, this can lead to Edward being blamed for bringing this danger into Bella's life.
Well, often in such fanfiction, a theme is the re - evaluation of relationships. When Edward is wrongly blamed, it shakes the relationships he has with other characters like Bella. His friends may also be divided in their loyalty. There could also be a theme of justice, as Edward tries to seek it and clear his name. The fanfiction might explore how the Twilight world's own rules and norms play into this situation of false blame.