Maybe there's a political conspiracy within Konoha. Some powerful and corrupt figures in the village see Naruto as a threat to their power or plans. They manipulate situations to make it seem like Naruto has done something unforgivable, leading to his exile. In fanfiction, this can add a lot of drama and complexity to the story.
One possible reason could be that he is wrongly accused of a serious crime against the village. For example, if some important secrets are leaked and the village leaders suspect Naruto without proper investigation, they might exile him to safeguard the village's so - called security.
One reason could be false accusations. Maybe some powerful individuals in Konoha frame Naruto for a serious crime he didn't commit. For example, they could plant evidence that he was involved in a plot against the village leaders. Another reason might be the fear of his power. If his strength grows too rapidly and uncontrollably in the fanfiction, the elders or some conservative forces in Konoha may decide to exile him to prevent any potential disasters. Also, political intrigue could play a part. If there are different factions vying for power in Konoha and Naruto becomes an obstacle or a scapegoat for one of them, they could manipulate the situation to get him exiled.
One possible reason could be political intrigue. Maybe there are some within Konoha who fear the power she might possess as a female Jinchuriki. They could spread false rumors about her being a threat to the village's stability, leading to her exile.
It could also be due to personal growth. Naruto might have outgrown the ideals and limitations of being a Konoha ninja. He may have developed his own set of values that no longer align with the village's ninja system. For example, he could have found that the constant focus on missions and loyalty to the village overshadowed the importance of individual freedom and justice on a broader scale.
Perhaps he discovers something about his past or his powers that makes him feel he has to leave Konoha to explore it further. For example, he might find out about a hidden place related to the Uzumaki clan and wants to go there alone to uncover the secrets. Or it could be that he has some kind of internal conflict within himself, like feeling unworthy of being in Konoha due to some self - perceived failure, and so he runs away.
Maybe it's due to a misrepresentation of Naruto's character. In the official Naruto series, he is a hero who is deeply connected to Konoha. If the fanfiction shows him in a negative light without proper justification, like suddenly turning against Konoha for no good reason, it could be banned. Also, if the fanfiction involves some sort of political incorrectness within the context of the Naruto universe, such as discriminatory ideas towards certain clans in Konoha, that would be a reason for a ban.
One possible reason could be that the clan fears his power. In some fanfictions, Naruto's growing strength and his potential to disrupt the clan's traditional power structure might lead to his exile. They may see him as a threat to their established ways.
It could be due to a prophecy. The Uzumaki clan might have received a prophecy that Naruto would bring great turmoil or change to the clan, and rather than face the uncertainty, they chose to exile him. Some clans in the Naruto universe are very superstitious about prophecies. Also, Naruto's unruly nature as a child could have been misinterpreted. His pranks and disregard for some of the strict clan traditions might have been seen as disrespectful and a sign that he didn't belong in the Uzumaki clan, leading to his exile.
In some fanfictions, he might be exiled because of false accusations. Maybe someone frames him for a crime he didn't commit, like stealing a powerful artifact from the camp's vault. The camp leaders, believing the false evidence, have no choice but to exile him.
One interesting plotline could be Naruto's journey of self - discovery in exile. He might meet new allies who help him harness his powers in ways he couldn't in Konoha. Another could be his attempts to prove his innocence or show Konoha what they lost by exiling him.
One possible reason could be fear. Naruto has the Nine - Tails within him, and some in Konoha might be too afraid of its power getting out of control. They may not fully trust Naruto to keep it in check.