Well, some writers might be interested in exploring alternate timelines or universes. In a different reality, they might think that Harry could be influenced by dark forces in such a way that he would do something as horrible as killing his parents. It could also be a form of creative rebellion against the established story. They want to break the rules and see where it takes them. And maybe, for some, it's a way to deal with complex psychological concepts, like how a person can lose their moral compass completely.
The existence of 'harry kills his parents fanfic' might be due to a desire for extreme creativity. Writers may want to see how far they can deviate from the original story while still using the same characters. It could also be a reaction to the over - saturation of the 'good Harry' stories. By creating a really dark and unexpected scenario, they are trying to offer something new. Additionally, it might be a way to explore the idea of fate and free will. If Harry is fated to be a hero, what would it take to break that fate and make him do something so atrocious?
Creative exploration. Some writers might want to see how the story would change if Harry had a darker side.
Some writers might want to explore the darker side of the character. They could be curious about how Harry would be if he was pushed to his limits and had to kill in self - defense or to protect others in a very extreme situation.
One reason could be to explore the dark side of human nature. By having Harry kill Ron, the writer might be showing how a good character can be corrupted. Another reason could be to create a shock factor. It's a very unexpected and extreme scenario that can draw readers in.
One reason could be exploring dark themes in the Harry Potter universe in a more extreme way. Some fans might be interested in delving into the psychological struggles that could potentially exist in that world, even if they are very dark. Another reason could be a form of catharsis for the authors, who may be dealing with their own internal issues and using the fanfic as a way to express their feelings in a fictional context.
One possible reason could be extreme despair. Maybe in that fanfic's alternate universe, Harry has lost all his friends and loved ones in a very tragic way, like a second wizarding war that was far more brutal and unforgiving. He might see no way out of the emotional pain and thus choose to end his own life.
In such a fanfic, one possible reason could be extreme depression. Maybe he faced overwhelming losses like the death of his closest friends and felt he couldn't go on. Another reason might be that he was under some kind of dark magic influence that made him lose his will to live.
Maybe they were forced into it by some dark magic or a powerful dark wizard. They could have been blackmailed into betraying Harry to save their own lives or the lives of others they cared about.
Some writers might create 'percy tortured fanfic' to shock the readers. It's a way to get a strong reaction and stand out in the vast sea of fanfiction. They might think that by presenting such a disturbing scenario, they can engage readers who are looking for something different from the typical happy - go - lucky fanfic.
One possible reason could be a misdirected spell during a battle. In the heat of a fight, Harry's spell could go awry and accidentally kill Malfoy. Another reason might be if Malfoy was under the control of a dark wizard and was about to do something truly terrible, and Harry had to stop him at all costs, including taking his life.
One possible reason could be to explore different parenting styles in the wizarding world. Spanking, although a controversial form of discipline, might be used by some writers to show how Harry's parents could have dealt with difficult situations. Another reason might be for shock value or to create a unique and unexpected story within the familiar Harry Potter setting. It could also be a way for the writer to delve deeper into the characters' personalities and how they might react in a situation that involves discipline.