There are several possible reasons. Maybe he's looking for more originality in his reading material. Fanfic often builds on existing universes, and Harry may be craving something completely new. Another factor could be that he's had negative experiences with certain fanfics, such as encountering offensive or poorly - written ones. After a while, these experiences could lead him to declare that he's had enough of fanfic as a whole.
They might feel that the flood of fanfic is diluting the true nature of the Naruto story. There are so many different interpretations in fanfics that it could be confusing or detracting from the core of what Naruto is all about. Also, if someone is more of a purist about the original Naruto series, seeing so much fan - made stuff might make them feel that enough is enough.
Maybe they think the fanfictions are starting to overshadow the original Naruto story. There are just so many different versions of fan - made stories that it's getting hard to distinguish the original from the fan - created.
They might say it because they think there are too many fanfictions that distort Hermione's character. For instance, if in a lot of fanfictions she's made into a weak character when she's actually very strong in the original series.
Maybe they are a fan of Harry (from whatever fandom he belongs to) and they are tired of seeing him being abused in fan - made stories. They might prefer more positive or different storylines for the character.
It could be because there's been a flood of fanfiction lately and they feel it's time to focus more on the official canon rather than all the fan - made stories. Tony Stark has a very defined character in the official Marvel world, and too much fanfiction might be diluting that.
She might have found that the quality of the 'Encanto' fanfiction she's been reading has declined. There could be a lot of poorly written or unoriginal stories out there, which made her decide she'd had enough.
Maybe they're tired of seeing so many different interpretations of Natsu in fanfiction that they think are inaccurate or over - the - top.
One reason could be the saturation of certain themes. For instance, the trope of Harry hating Snape in fanfiction might be overdone, and it seems like Harry (in the fanfic world) is tired of that one - sided view.
Maybe they just don't understand the real essence of Harry Potter. They might have only seen a small part of it or misinterpreted some of the more emotional or character - developing moments as signs of weakness, which is completely wrong.
Maybe he's tired of seeing so many different and often inconsistent interpretations of his character in fanfiction.