Shane could be an individual with a passion for the macabre. In the context of 'Shane telling scary stories', he or she is the storyteller. Maybe Shane grew up hearing scary stories himself or herself and decided to carry on the tradition. He or she might have a collection of age - old tales, or perhaps create their own original scary stories to share with others.
There's also a possibility that Jake is just an ordinary person in the fanfiction world who has been given this extraordinary ability to imprint. This could make his character development really interesting as he has to deal with the consequences of this sudden and powerful connection to the reader. He might struggle with understanding his new feelings and how to act on them in a world that may not be used to such a thing.
One interesting Shane Acker fanfiction could be about exploring the backstories of the characters in his works in more depth. For example, delving into the childhood of a character and how it shaped their actions in the story.
Another place to check could be fanfiction.net. It has been around for a long time and has a wide range of fan - created content. Just search for Shane Acker in the search bar, and you might discover some interesting reads.