I think it's not that common. Most fanfictions tend to follow the general traits of the characters from the original books. Since Harry is known for his loyalty and care for his friends, a fanfiction where he doesn't care about anyone is quite the opposite. However, it could be an interesting concept for some authors who want to break the mold and create something new and thought - provoking.
One reason could be the author wants to create a unique and edgy story. By making Harry Potter not care about anyone, it's a complete subversion of the well - loved character. It grabs readers' attention.
Well, in the original series, Harry Potter is a very caring person. He cares about his friends like Ron and Hermione deeply. He also cares about the fate of the wizarding world. But in this fanfiction, it's a complete departure. Maybe the author wants to explore a different side of Harry, like if he had been through some really tough experiences that made him seem uncaring. But it goes against what we know of his core character.
Maybe he has been betrayed too many times in the past. For example, in the original story, some so - called friends or allies might have let him down, and this experience makes him overly cautious in the fanfiction.
I'm not sure specifically as there could be many interpretations. It might be about a situation where Harry has reached a point of apathy or detachment in the fan - created story.
I'm not entirely sure specifically what that particular 'harry just doesn't care fanfiction' is about without reading it. It could be a story where Harry has a nonchalant or apathetic attitude towards certain events, characters, or situations in the Harry Potter universe. Maybe he doesn't care about the latest wizarding drama or the actions of his friends or foes.
Well, it could be that the fanfiction is set in a very different universe where Naruto has different upbringing or experiences. But this is quite a stretch because Naruto's caring side is so deeply rooted in his story. It might also be that the writer is simply trying to create shock value by presenting such a counter - intuitive view of Naruto. But in general, it's not in line with the essence of Naruto as we know him from the original series, and it might be a bit of a gimmick to make the fanfiction stand out in a sea of more traditional Naruto stories.
It might also suggest that the Harry Potter franchise, in an official capacity, doesn't really take into account fanfic. The official Harry Potter universe has its own set of stories, lore, and development. Fanfic is a separate realm created by fans for their own enjoyment. So, it's like Harry Potter, representing the official brand, is indifferent to fanfic because it exists in a different sphere of creativity.
Perhaps Harry is so devoted to the original canon of a story, like a book series or a movie franchise, that he dismisses fanfiction. Fanfiction can sometimes deviate a great deal from the original, and if Harry is a purist, he might not care for these reinterpretations. He might think that the original creators' vision should be the only one considered, and fanfiction is just a distraction from that.