Slash fanfiction often involves non - canonical romantic or sexual relationships between characters. In this case, it seems to be about a relationship between Snape and Harry Potter in a rather strange and inappropriate way that goes against the original spirit of the 'Harry Potter' series. However, this is a form of fan - created and often not in line with the official story.
No. It is likely a very niche and rather controversial type of fanfiction. Most mainstream 'Harry Potter' fans are interested in fanfiction that stays truer to the original characters' personalities and relationships as depicted in the books.
One interesting aspect could be the unique character dynamics it creates. It might explore a different side of Snape's relationship with Harry in a fan - created scenario. Maybe it delves into how Snape's actions, which are often seen as negative in the original series, are re - imagined in a more complex way.
It probably deviates in terms of character portrayal. In the original, Snape has a very complex and mostly antagonistic relationship with Harry. But this fanfiction with its 'daddy Snape' concept might make the relationship more personal or family - like in a very different way than the books or movies.
The 'daddy sucks' in Harry Potter fanfiction might refer to a negative view of father - like figures. For example, some might explore a negative portrayal of Vernon Dursley. However, this kind of theme can be quite controversial as it goes against the general family - oriented values in the original series.
One reason could be that the creators of such fanfiction are die - hard Snape fans. They might feel that Snape is the most interesting and underappreciated character in the 'Harry Potter' series. So, they create fanfiction where Harry Potter, who they may see as getting too much attention in the original, is not as great, to put more focus on Snape.
Well, it could be that some Snape fans in fanfiction really dislike how Harry Potter treats Snape in the original story. Maybe they think Harry is too quick to judge Snape and that he doesn't see all the sacrifices Snape has made. So in their fanfiction, they might create a world where Harry Potter is portrayed in a negative light compared to Snape.
In Harry Potter fanfiction, the 'daddy sucks' idea might be expressed through the emotional turmoil of a character. For example, Neville Longbottom could be shown as having a difficult time dealing with the memory or the reality of his father who is in St. Mungo's. The fanfiction could focus on how Neville feels let down by his father's absence in his life and how that shapes his character in a different way from the books.
A theme could be redemption. Perhaps Snape has done something so unforgivable in the eyes of Harry that it makes Harry think Snape sucks. And the story could be about Snape trying to redeem himself in Harry's eyes. Or it could be about jealousy. Snape may be jealous of Harry's fame and Harry may sense this and thus dislike Snape.
One common theme is protection. Snape often takes on the role of protecting Harry from the various threats in the wizarding world. Another theme is the discovery of family. Since Harry lacks a proper family in the original story, in these fanfictions, Snape can become a surrogate father figure, and there are themes of love and care that come with that new family dynamic.