Well, for a start, they could be frustrated with Bella's character development. In the original series, she might not have grown in the ways they expected. So, they write 'bella swan bashing fanfiction' to show how they think she should have been different. Also, it could be a way to explore alternative storylines. If Bella wasn't the main focus or was a more flawed character, how would the story change? It gives them creative freedom to play with the Twilight universe.
Some people write 'Twilight Bella bashing fanfiction' because they might not like her character. Maybe they think she's too whiny or too dependent on Edward. They want to rewrite the story from a different perspective where Bella is not the main focus or is shown as having more negative traits.
Some people write it for the shock value. Changing a major character's fate like Bella's death can create a whole new narrative that grabs readers' attention.
Well, one reason could be that they are fans of Harry Potter and feel that the Twilight series, especially Bella's character, doesn't measure up in terms of character development. They use fanfiction as a platform to express their disappointment. For example, they might compare Bella's lack of agency in Twilight to the more empowered characters in Harry Potter. So, writing 'hp twilight bella bashing fanfiction' becomes a way to voice their criticism.
Some people write avengers bashing fanfiction just for fun or to be contrarian. They like to see what happens when they turn the well - known heroes into something else. It could be a way to start discussions among fans as well. For instance, if a writer creates a fanfic where Hulk is out of control all the time and causing chaos instead of helping, it can spark debates about the true nature of the character and how he should be written.
There could be a sense of wanting to rewrite the narrative. Maybe they felt that Snape was over - glorified in the original story, especially considering his past as a Death Eater. They want to explore the idea that his actions, even his good ones like protecting Harry, were not enough to make up for his earlier wrongdoings. So they write fanfiction to challenge the positive view of Snape that some fans have.
Some people write it to add drama. By bashing Minato, they can create more conflict in Naruto's backstory, which makes the story more engaging.
Some people write it because they may not like Steve's character arc. They might feel that he became too self - righteous in the movies. For example, his stance on the Sokovia Accords could be seen as him being stubborn rather than considering all perspectives.
Well, for one, they might be really into the idea of Naruto and Hinata being together. And in their minds, Sakura gets in the way. So, to promote the Naruhina relationship, they bash Sakura in their fanfictions. Another reason could be that they simply don't like Sakura's character as it is in the original story. Maybe they think she's too whiny or too focused on Sasuke. So, they rewrite her in a negative way in their fan - created stories to suit their own preferences.
Some people write it because they might feel that Konoha has not always been fair to its characters, especially Naruto. They see the potential for different storylines where the village's actions are questioned.
Some people write it because they are big fans of the Sasuhina pairing. They might feel that Sakura is in the way of their ideal relationship for Sasuke and Hinata, so they bash her in the fanfiction. It's a way for them to explore their preferred romantic scenario.