It's fairly common. Fans often look for more content related to their favorite shows. Since 'Attack on Titan' has a large and passionate fan base, there are a lot of fanfics available. 'Aot' fans might watch (read) these fanfics to explore different scenarios that the official story didn't cover. For example, they might want to see how a certain character would react in a different situation or what would happen if a major plot event had a different outcome.
There could be various fanfictions. Maybe some that focus on alternative endings, like ones where certain characters survive who didn't in the original. For example, a fanfiction where Erwin survives and leads the Scouts in a different way.
Freddy Kruger is indeed based on a true story in a very loose way. The idea of something terrifying happening in dreams came from real - life experiences of people who had very disturbing nightmares. The creators of the Freddy Kruger story took this basic idea and built on it. They created the character of Freddy Kruger, a serial killer who attacks people in their dreams. They added all the spooky details like his burned face and the razor - sharp claws. But it all started from the real - life phenomenon of really bad nightmares that people couldn't escape from even when they woke up.
Freddy Kruger was a fictional character in the 'A Nightmare on Elm Street' series. He was a child murderer. After being burned alive by the parents of his victims, he returns in the dreams of teenagers in Elm Street to kill them. He has a bladed glove which he uses as his weapon in the nightmares.
Otto Kruger was an actor who appeared in some science fiction works. He might not be as well - known as some of the mega - stars in the genre, but he contributed to the development of science fiction on the screen with his performances.
Freddy Kruger was a character in the 'A Nightmare on Elm Street' series. He was a burned and vengeful spirit who haunted and killed people in their dreams.
It could mean that a person who is a fan of 'Attack on Titan' (AOT) is reading or watching fan - created fictional works related to AOT. Maybe they are interested in seeing different interpretations or storylines that fans have come up with.