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.
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.
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.
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're tired of seeing so many different interpretations of Natsu in fanfiction that they think are inaccurate or over - the - top.
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.
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.
Perhaps they don't fully understand the depth of the world - building. They might see all the magic and think it's just some random, crazy ideas thrown together like in a not - so - well - thought - out fanfic.
Perhaps they haven't fully understood the series. Some people might just skim through the books or movies and miss out on the depth. They could be focusing on just the surface elements like the magic spells and not realizing the complex relationships and themes beneath.
Perhaps they've come across some really strange fan - created stories. Some fanfictions can be very out there with their interpretations of the wizarding world.