Some writers might want to create a unique or controversial take. They think by bashing a well - liked character like Jiraiya, they can attract more attention to their fanfiction.
Some people might write it because they prefer other characters over Naruto, Hinata, and Sakura. They could be trying to promote their favorite characters by putting these three down in their fanfiction.
One possible reason could be jealousy. Maybe in the fanfiction, Jiraiya gives more attention to another character, and Naruto, being young and impulsive, starts to hate him for it.
One possible reason could be that the writer lost inspiration. Jiraiya has a complex character in the Naruto series, and it might be difficult to keep coming up with new and interesting plotlines for him in fanfiction. Another reason could be that the writer got involved in other projects or fandoms and simply didn't have the time to continue with the Naruto fanfiction centered around Jiraiya.
One possible reason could be that Naruto feels he has learned all he can from Jiraiya at that point. Maybe he has reached a level in his training where he believes he needs new experiences and challenges that Jiraiya can no longer provide.
The existence of such fanfiction might be due to the creativity of the fans. They want to experiment with different character arcs for Naruto. In the original series, Naruto is known for his non - violent approach and his goal to protect everyone. But in this type of fanfiction, by making him a killer, fans can explore the consequences of a character going against their core values. It can also be a reaction to the sometimes overly - idealized view of Naruto in the official story, allowing for a more gritty and real - world - like exploration of his character.
One possible reason could be that Naruto feels he has learned all he can from Jiraiya at that point. Maybe he wants to explore his own path independently and test his skills without Jiraiya's constant guidance.
One possible reason could be that Naruto might feel Jiraiya is being too overbearing in his training methods. In some fanfictions, Jiraiya might push Naruto too hard without considering his emotional state, leading to Naruto snapping.
It could also be a way for some writers to express their own angst or darker emotions through the Naruto universe. By putting Naruto in such a horrible situation like being crucified, they can explore themes of sacrifice, suffering, and the reaction of the other characters in a very extreme way. However, this is not in line with the general positive and action - packed nature of the Naruto series.
Well, some writers may be trying to create a more 'gritty' or 'realistic' version of the Naruto universe in their eyes. They might think that adding an element of abuse to Sakura's story can add more depth and drama. However, they may not fully consider the negative impact it can have on the character and the fans who love her. Also, it could be a way for the writer to express their own darker emotions or experiences through the fanfiction, although this is not a very healthy or appropriate way in this context.
Perhaps Jiraiya has some personal issues or inner conflicts. He might be dealing with his own past traumas or demons that prevent him from taking on the role of Naruto's trainer. For example, he could be haunted by the failures in his previous relationships or battles, and he feels unfit to train Naruto until he sorts out his own problems.