Well, it could be that he values the original story so much that any deviation in fanfiction annoys him. He might feel that the fan - made stories distort the essence of what he experienced in the official Percy Jackson narrative. For example, if fanfiction changes the relationships between characters in a way he doesn't like, it could lead to his dislike.
Perhaps he believes that fanfiction can create false expectations or interpretations among the fans. He has his own understanding of Percy Jackson and the related world, and when fanfiction goes in different directions, it clashes with his view. Also, some fanfiction might focus too much on certain aspects like romantic relationships in a way that he finds inappropriate or not in line with the spirit of the original.
Jason Grace may have had some bad experiences with Percy Jackson fanfics. For example, he might have read some that were really poorly written, with inconsistent plots or offensive content. This could have led him to form a general dislike for all Percy Jackson fanfics.
Well, perhaps in fanfiction, their characters are often misrepresented. Maybe Percy's personality traits are distorted in a way that makes him seem out of character when paired with Jason, which could lead to Percy seeming to 'hate' Jason in those stories.
Maybe he doesn't like the way some fanfiction portrays Percy or their relationship. Fanfiction can often deviate from the original characters' personalities, and Jason might be a purist who prefers the official versions.
In Percy Jackson and Jason Grace fanfictions, Percy is often seen as more of a maverick. He has a very strong connection to the sea and his own unique sense of humor. Jason, on the other hand, is more of a traditional hero type in fanfictions. He's more rule - bound and has that Roman discipline. Their characterizations can be really different in fanfictions depending on the writer's take.
Well, it's because they are both such strong and interesting characters. Fans love to see two powerful demigods form a deep bond. It adds an extra layer of emotion and drama to the stories.
It could be that the author of the fanfic has created a rivalry between them. In some fanfics, authors like to add tension and conflict, and Jason hating Percy could be part of that. Maybe Percy got more attention or praise in the story, and Jason, being a proud character, resents that.
In some fanfictions, Percy Jackson and Jason Grace can be depicted as brothers. Fanfic writers often like to create new relationships and backstories for existing characters, and this is one such example. It allows for new and interesting plotlines to develop.
It's inappropriate. These characters are from a world that is meant to inspire adventure, friendship, and heroism. Sexual fanfiction not only misrepresents the essence of the story but also can be a source of discomfort for many fans, especially those who are young and look up to these characters.
There is a fanfiction called 'Jason, Percy and the Lost Prophecy'. This one is quite long but really engaging. It has a complex plot where Jason and Percy are on a mission to find a lost prophecy that could change the fate of the demigod world. The way the two characters interact and grow throughout the story makes it a must - read for fans of both characters.
There's also 'Jason and Percy: United Front'. In this fanfic, the two characters are forced to work together despite their initial differences. It delves deep into their personalities and how they learn to complement each other. The writing style is engaging and it keeps you hooked from start to finish. It also includes some cool new interpretations of the demigod powers.