Some writers create it because they like to explore the relationship between two very different characters. Snape is often seen as a complex and somewhat dark character, while Hermione is bright and eager to learn. The contrast can lead to interesting storylines.
It could be a way to subvert the expectations of the original story. In the 'Harry Potter' series, Snape has a rather adversarial relationship with the main characters. By writing a fanfiction where he takes care of Hermione, writers can create an alternate universe where the characters interact in a more positive and unexpected way. This allows for a lot of creativity in exploring new plotlines, character developments, and themes related to redemption, acceptance, and the power of unexpected relationships.
One great example could be a story where Snape secretly protects Hermione from some dark forces in Hogwarts that the other professors are unaware of. He might use his knowledge of the Dark Arts to counter any threats aimed at her.
There could also be a plotline where Hermione discovers some of Snape's past traumas and in trying to help him, they form a bond. Snape, out of gratitude and a newfound respect for her, starts to take care of her like a mentor. He shields her from the harsh judgments of other Hogwarts professors and students alike, and together they work towards a better future for the wizarding world.
One interesting plot could be that Hermione discovers Snape is ill or injured in a post - war scenario. She uses her vast knowledge of magic to nurse him back to health. During this process, they start to understand each other better. Snape, who has always been a rather aloof and misunderstood character, begins to open up to Hermione, sharing his past traumas and the reasons behind his actions in the war.
The unique aspect is the unlikely pairing. Hermione, who is known for her intelligence and Gryffindor values, and Snape, the brooding Slytherin. Their interactions are filled with tension and contrast. When Hermione takes care of Snape, it's like two different worlds colliding. She represents the new, more inclusive wizarding world, while Snape is a relic of the old, more complex and dark - edged wizarding ways.
People like these fanfictions because it shows an interesting dynamic. Remus is an older, more experienced wizard, and Hermione is a brilliant but young witch. So the idea of him taking care of her, whether it's in terms of knowledge transfer, protection, or emotional support, is appealing. It's like a father - daughter or mentor - mentee relationship that fans enjoy exploring.
It's popular because it creates an interesting dynamic. Snape has always had a complex relationship with Harry in the original series. When Harry is deaged, it gives Snape a chance to start anew and perhaps be a different kind of influence. It also allows for exploring Snape's more nurturing side which is a contrast to his usual cold persona.
It's popular because it's a new take on the existing relationships in the Harry Potter universe. Hermione and Scorpius come from different backgrounds. Hermione is a Gryffindor, smart and brave, while Scorpius is a Slytherin from a family with a bit of a dark past. The idea of Hermione taking care of him is like a bridge between two different worlds, which fans find really fascinating.
Snape's care for his Slytherins can also be shown through his teaching methods. He may be strict, but in fanfiction, it's often with the intention of making them better. He could give extra tutoring to students who are struggling in potions or other subjects. He understands the Slytherin ambition and tries to channel it in a positive way, like encouraging them to pursue difficult but rewarding areas of magic study.
Some writers might do it for the sake of creating drama. By making Ginny a 'villain' of sorts, they can add more conflict to the relationship between Harry and Hermione.
One reason could be to explore complex character dynamics. In the original 'Harry Potter' series, Snape has a very ambivalent relationship with Harry. By writing about Snape rejecting Harry in fanfic, writers can dig deeper into Snape's internal conflict. He has his own grudges and loyalties, and this rejection could be a way to show how his past and his own sense of self prevent him from fully accepting Harry.