Well, it's a bit of a subjective matter. While there are a huge number of fanfictions already, new fans are always emerging and they might want to contribute their own stories. However, from a certain perspective, with so many existing ones, it could be argued that there's enough. There are so many different takes on the characters, relationships, and the magical world that it might be saturating the market so to speak.
In my opinion, 'naruto has had enough fanfiction' may mean that the Naruto series has been subject to an overabundance of fan - made fictional works. Fanfiction can be great, but when there are too many, it can start to feel like the original Naruto concept is being drowned out. There could also be a sense that the creativity in fanfiction has become repetitive or is going in directions that don't really fit with the core of Naruto.
Well, 'naruto has had enough fanfic' might imply that the Naruto universe has been so overly explored in fan - created fictional works. There could be various reasons for this. For instance, with the large number of fanfics, the quality might be diluted, and the original essence of Naruto might be getting distorted in some of these fan - made stories. Also, it could be that the fans themselves feel there are just too many fanfics, and it's taking away from the uniqueness of the official Naruto storylines.
Well, it could also be that the person making this statement is tired of seeing Hermione in fanfiction in general. Maybe they prefer to focus on the original source material and feel that the fan - made stories about her have detracted from the original essence of the character. They might think that the fanfiction world has exploited her character enough.
It could mean that the Harry Potter franchise has been the subject of so much fan fiction that it's perhaps reached a saturation point. There are countless fan - made stories, and maybe it's felt that there's just too much out there now.
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.
It could mean that Tony Stark, as a character, has been the subject of so much fanfiction that it's become overwhelming. Maybe the creators or the official side feel that there are too many unregulated or inaccurate portrayals in fan - made stories.
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.
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.