One reason could be related to the way Snape is portrayed in the fanfiction. If Snape is made to be even more menacing or unpredictable than in the original series, Harry would naturally want to avoid him. Also, if there are new plot elements like a mystery involving Snape that Harry senses but doesn't understand, he might choose to keep his distance to protect himself and his friends.
In some fanfictions, Harry might avoid Snape because of the pre - existing animosity between them in the original story. Harry has long seen Snape as a figure of authority who is out to get him, so in fan - created scenarios, that fear or dislike could be intensified, leading him to avoid Snape.
Well, it could be that in those fanfictions, the author wants to explore a different dynamic. Maybe Harry has a secret he doesn't want Snape to discover, so he avoids him. For example, if Harry is developing new magical abilities that he's not ready to share, especially with someone as critical as Snape, he'd stay away.
Another reason could be psychological. Harry has lost his parents and Snape's cold and often menacing demeanor reminds him of the danger and loss he has faced. This makes him flinch as a sort of self - protection mechanism. In fanfictions, this psychological aspect can be explored in great detail, showing how Harry's past traumas influence his present reactions to Snape.
One reason is the complex relationship between Snape and Harry in the original Harry Potter series. Writers are intrigued by this relationship and use the idea of Snape pinning something on Harry as a way to explore it further. It could be a symbol of protection, a sign of a hidden connection, or a device for plot development.
In some fanfictions, Harry might defend Snape because he comes to understand Snape's complex past. Snape was in love with Harry's mother, Lily, and his actions, though often harsh towards Harry, were sometimes motivated by his love for her and his role as a double agent against Voldemort. Harry, being a character who grows in understanding, could defend Snape once he learns these truths.
Snape terrifies Harry in fanfiction perhaps because of his strict and often cold demeanor. In the original series, Snape was harsh towards Harry, always seemingly looking for reasons to deduct points or give him detention. In fanfiction, this could be exaggerated. His dark appearance, with his long black robes and sallow complexion, also adds to the menacing aura.
In these fanfictions, Snape might ignore Harry because of his past with Harry's father. James Potter bullied Snape when they were at school, so Snape could be projecting that hatred onto Harry. It's a simple yet powerful motivation for his behavior.
The popularity comes from the fact that fans are always interested in character development. Harry and Snape are two very complex characters. In therapy fanfictions, we can see them dealing with their inner demons, past traumas, and learning to coexist or even become friends. It gives a sense of hope and redemption that many fans enjoy. For example, seeing Snape get a chance to heal from his past mistakes and Harry to understand Snape's motives better is really appealing.
In fanfiction, Snape may treat Harry differently due to the power Harry possesses. Harry is a powerful wizard, and Snape might be afraid of what Harry could become. This fear could manifest as different treatment. Maybe Snape is trying to mold Harry in a certain way so that he doesn't go down a dark path, or perhaps he's just jealous of Harry's natural talent and tries to put him down as a result.
One reason could be that Harry Potter is the main character of the series. His story arc is central, and Snape is often a complex figure in relation to Harry. Writers might be more interested in exploring how Harry's actions and growth impact Snape's character and vice versa. Also, Harry has a broader range of relationships within the wizarding world that can be intertwined with Snape's story in fanfiction.
Perhaps it's related to Harry's association with his father, James Potter. Snape had a long - standing grudge against James, and seeing Harry might bring back those bitter memories. So, whenever Harry does something that reminds Snape of James, like being overly confident or a bit of a troublemaker, he yells at him.
In some fanfics, Snape might hurt Harry out of his long - held grudges. Snape was in love with Harry's mother, Lily, and Harry being a reminder of James, who bullied Snape in school, could trigger his negative emotions. Also, Snape's loyalty to Voldemort in the earlier days in some fan - created scenarios might lead him to target Harry, who was seen as a threat to Voldemort's plans.