It could be due to a personal conflict between Percy and one of the hunters. Suppose a hunter did something really mean to one of Percy's friends. Percy is very loyal to his friends, and this could turn him against the whole group of hunters. Also, the hunters' recruitment methods might seem unfair or too forceful to Percy, making him dislike them.
Maybe Frederick has a different view of the original work and thinks fanfiction distorts it. For example, if he is a purist who loves the original Percy story as it is, any fan - made alterations in the fanfiction might be off - putting to him.
Well, it could be that in the fanfiction, Zeus's actions towards Percy's friends or family were not good. For example, if Zeus endangered them or was overly harsh. Percy is a character who values loyalty and justice, so he would hate Zeus for acting against those values.
Maybe Percy has had bad experiences related to alcohol in the fanfiction world. For example, he could have seen someone he cares about become a different, worse person because of alcohol. Or perhaps it goes against his values. He might be a character who values self - control and discipline, and alcohol represents the opposite of that.
In fanfiction, Percy could hate the gods due to their lack of proper care for their demigod children. They are often absent and don't really step in to help when the demigods are facing real hardships. For example, Percy has been through numerous life - threatening quests where the gods could have made things easier but didn't. This builds up resentment towards them.
Maybe in some fanfictions, the writers change the characters' personalities too much. Annabeth is a strong - willed character, and if Percy is portrayed in a way that goes against their original relationship dynamic, she might seem to 'hate' him in that fictional context.
In fanfiction, there could be a whole bunch of reasons. Artemis is the goddess of the hunt, virginity and the moon. Percy is a son of Poseidon. Their powers and natures are quite different. Perhaps in some stories, Percy's actions, like his impulsive behavior or his way of handling situations, clash with Artemis' more reserved and calculated approach. This could lead to her hating him.
In the fanfiction, perhaps there are misunderstandings between Percy and Calypso. Maybe she blames Percy for things he didn't do or vice versa. These constant misunderstandings can lead to Percy hating her.
Maybe Percy just doesn't like the whole idea of combining poker with fictional stories. It could be that he finds the concept of writing fanfiction about poker really unappealing. For example, he might think that poker is a serious card game and doesn't fit well with the often creative and sometimes out - there nature of fanfiction.
Well, it could be that Percy is a purist when it comes to the stories involving Artemis. Fanfiction often takes a lot of creative liberties and Percy might not be a fan of those. He could be so attached to the original canon that any deviation in the form of fanfiction makes him dislike it. He may also have personal reasons related to his own experiences within the world where Artemis exists that make him not want to see her in the made - up scenarios of fanfiction.
It could be that the author of the fanfiction wanted to create a unique dynamic. Perhaps Percy's character in this fanfic has different values and goals that conflict with Hestia's, so he hates her.