Another reason could be that reading fanfiction makes him feel more connected to the wizarding community outside of Hogwarts. He gets to see how different people from all over the world perceive him and his friends. It's like getting a peek into the minds of his fans, and it can be quite fascinating for him to see the love and imagination they pour into these stories.
It could be that Harry reads Harry Potter fanfiction to feel more connected to his fans. By reading what they write, he gets a sense of how they view him and his friends. He might also find comfort in the fact that his story has inspired so many people to create their own tales within the same universe. Fanfiction can be a form of flattery, and Harry might enjoy seeing how much his story has captured the imaginations of others.
He could be looking for different perspectives. Fanfiction often has unique takes on the characters and events. For instance, some fanfictions might focus on the backstories of minor characters like Neville's family history in more detail. So, it gives him a chance to see the wizarding world from different angles.
Perhaps there simply are no fanfiction works available in the wizarding world. The infrastructure for creating and distributing fanfiction, such as the Internet or fan clubs, doesn't exist there. Harry is too busy with his own life at Hogwarts, dealing with classes, Quidditch, and the constant threat of the Dark Arts to even think about something that doesn't exist in his realm, like fanfiction.
Maybe he just wants to do something fun and different. It could be a way to interact with his fans, especially the younger ones.
Maybe for fun. It's an easy way to create new and interesting content for his channel.
Denis might read fanfiction for the simple reason that he loves the original source material so much that he wants more stories set in that universe. For example, if he's a huge fan of a particular TV show, the fanfiction allows him to continue the story in his mind.
Fresh might read fanfiction for the creativity it offers. Fanfiction writers often come up with really interesting and unique ideas that can be different from the mainstream. It gives Fresh a chance to experience different interpretations of characters and stories they already like. For instance, if the original work has a certain character that Fresh is intrigued by, fanfiction can show that character in various new situations, like a different time period or with a different set of relationships. Also, reading fanfiction can be a form of escapism. Fresh could be using it to get away from the real world for a while and immerse themselves in these fictional worlds created by other fans.
Maybe he lives in a world where fanfiction doesn't exist or he simply doesn't have access to it. For example, in the wizarding world of Harry Potter, their literature mainly focuses on magic textbooks, historical records of the wizarding world, and some classic wizarding novels. Fanfiction might be a completely foreign concept there.
There could be a more practical reason. Fanfiction might be considered a distraction from his real duties and studies in the wizarding world. Harry has a lot on his plate, like fighting against Voldemort, learning new spells, and dealing with the challenges at Hogwarts. Reading fanfiction could take away his focus from these important matters, so he is not allowed or simply doesn't have the opportunity to read it.
She reads it for fun. Fanfiction can be an entertaining way to pass the time, especially if you're really into the original work like Bella is with Twilight.