It could be that the author was trying to break the boundaries of traditional fanfiction. They wanted to create something completely different by merging two very popular and distinct fictional worlds. They might have been inspired by the idea of exploring new narrative possibilities that come from combining such different concepts as the wizarding world of Harry Potter and the superhero world of Wonder Woman.
Maybe it's just pure creativity gone wild. Some fans might want to see how the two different mythologies interact.
The inspiration might be the desire to blend two popular fictional characters. Both Harry Potter and Loki are quite popular. Fans might be interested in seeing how the magic of Harry Potter's world would interact with Loki's mischievous and powerful nature.
Perhaps the creator of such fanfiction was interested in exploring the contrast between good (as represented in Harry Potter) and evil (as Belphegor is often seen in some interpretations). They might want to see how the characters and world of Harry Potter would react if there was an intrusion of a figure like Belphegor. It could also be just a wild creative idea from a fan who loves both Harry Potter and stories related to Belphegor and just wanted to mash them together to see what would happen.
I'm not sure it can be considered a legitimate or widely recognized work. Harry Potter and Wonder Woman are from two very different fictional universes. Fanfiction usually tries to stay somewhat true to the original source's lore, and combining these two in such a statement seems rather odd and might not follow the typical rules or expectations of fanfiction.
Well, it could be pure creativity. Maybe a fan just wanted to see how the magic of Harry Potter would interact with the powers of Coyote Starrk. It could also be an attempt to break the boundaries of the two different fictional worlds and create something entirely new and unexpected.
Perhaps it's just a wild creative idea from someone who loves both Harry Potter and Wade Barrett. They might want to see the magic of Harry Potter combined with the toughness and charisma of Wade Barrett in some strange way.
Perhaps it was inspired by the trend of remixing and reimagining classic stories. The author might have thought that adding a cyborg element to Harry Potter would create a new and interesting perspective. They could have been influenced by other works that blend magic and technology, and decided to apply a similar concept to the well - known Harry Potter universe.
Perhaps it's the love for both franchises. Someone who is a big fan of both 'Harry Potter' and 'Kingdom Hearts' might have wanted to see how the characters and concepts from the two could interact. Maybe they saw some similarities in the magical or fantastical elements and thought it would be interesting to create a crossover.
One possible inspiration could be to subvert the expectations of the Harry Potter universe. We are so used to magic being the solution to everything in that world. By introducing a gun, the author might be trying to show that there are other ways to approach problems. It could also be inspired by a love for both the Harry Potter series and action - oriented stories involving guns, and the author wants to combine the two for a fresh take on the Potterverse.
Perhaps it was inspired by the idea of the extraordinary. People are often fascinated by things that are outside the norm. A woman of 8 feet tall is so far from the average human height that it makes for a captivating story concept.