Any characters who have a special connection or mission with Harry. For example, if there are characters who are part of a prophecy related to Harry, his ignoring them could disrupt their plans. It could also affect any love interests he has, as they would be left wondering what they did wrong and might try to win his attention back.
His closest friends like Ron and Hermione would probably be the most affected. They are used to having Harry around and relying on him. His sudden ignoring would leave them confused and worried.
The teachers at Hogwarts might also be affected. They might notice Harry's change in behavior and try to figure out what's wrong. They could be concerned about his well - being or if his ignoring others is causing trouble in the school.
The other students at Hogwarts would also be affected. For example, Neville, who looks up to Harry. If Harry ignores everyone, Neville might feel lost. Ginny, who has a special connection with Harry, would be deeply hurt. And the teachers like Snape, who has a complex relationship with Harry, would also be impacted. Snape might be secretly glad at first, but then realize that Harry's isolation could be a sign of a bigger problem in the wizarding world.
Well, perhaps in this fanfiction, Harry has been through so much that he decides to isolate himself from everyone. He might be tired of the constant danger and the expectations placed on him. So he shuts out his friends like Ron and Hermione, and just focuses on his own inner journey, maybe to discover some new magic that he believes can only be found in solitude.
The Ministry of Magic could be the main antagonist. They might be the ones who spread lies or misinformation about Harry, causing everyone to abandon him. They could be afraid of Harry's power or have some ulterior motives to get rid of him. They could use their influence and authority to turn the public against Harry, making his life a living hell as he tries to survive on his own.
Perhaps he is trying to hide his true self. He may have a side of him that he doesn't want others to discover, like some special abilities or a different origin. So, being cold to everyone helps him keep his secrets and avoid getting too close to people who might figure him out.
His close friends like Sasuke and Sakura would likely be among the most affected. They know Naruto well and seeing him in a terrifying state would be very shocking for them. For Sasuke, who has a deep bond with Naruto, it would be especially hard to face a scary Naruto.
He might obliviate everyone to keep a secret. And hide fanfiction because he thinks it's not suitable for public viewing.
It could be due to the saturation of the market. There might be so much Harry fanfic already that it's hard for new works to stand out. Additionally, changes in the way people consume media, such as a shift towards more visual content like streaming shows, could also lead to a decrease in interest in reading Harry fanfic.
Voldemort is an obvious one. Given all the destruction and death he has caused, it's very likely that Harry would never forgive him. His actions led to the loss of many innocent lives, including Harry's parents.
Well, it could create a lot of tension. If Harry ignores everyone, it might lead to misunderstandings. His friends might feel left out or hurt, which could drive a wedge in their relationships. This in turn can change the whole dynamic of the group. For example, they might not be as united when facing challenges, and it could also lead to some of them trying to figure out why Harry is acting this way, adding a mystery element to the plot.
It could be the Ministry of Magic. They have often been shown to be corrupt and self - serving in the original series. If they try to manipulate Harry again, he might see them as the main antagonists and target them in his revenge.