Why would someone think Percy Jackson is an Ackerman fanfic?

There is no valid reason. Harry Potter has been around for a long time with a very distinct identity. If someone thinks this, it might be because they are making a very random and baseless association. It could be that they have some misunderstanding about the nature of fanfics in general and how they are related to original works like Harry Potter.

It's a very strange thought. Maybe they are just misinformed or haven't really read either series properly. There's no real similarity between the two that would lead to such a conclusion.

I can't really think of a good reason why someone would think that. Maybe they misread some aspect of the story? But as I said before, the story is all about Greek mythology and Percy's adventures as a demigod, not security.

Maybe they're just really confused. The two have almost nothing in common, but perhaps they saw some fan - made crossover art or something and got the wrong idea.

Maybe it's a misunderstanding. Some people might be confused if they've seen some crossover fan art or fan theories that mashed the two together in a really strange way. But in reality, they have no real connection in their original concepts.

It's a wrong idea. Maybe some people who are not familiar with it misheard or misread some information. But as I said before, it's an American - made work.

It's likely a misunderstanding. Maybe someone who is not very familiar with both series made a wrong assumption. But as we know, Percy Jackson is about Greek mythology and demigods, while the Demogorgin is from Stranger Things, two very different things.

It's probably a misunderstanding. Maybe some people who are not familiar with the series just assume it could be Japanese fanfiction because of its popularity and some similarities in the concept of a young hero in a fantastical world that they might wrongly associate with common elements in some Japanese fictional works.

No. Percy Jackson is a series about a demigod named Percy Jackson and his adventures in the world of Greek mythology. It has its own unique storylines, characters, and universe that are completely separate from an Ackerman fanfic which would typically be related to something else entirely.

Maybe they are just misinformed. They might not be very familiar with the history of fanfiction and the long - standing vampire genre within it.