One of the great 'Dawson's Creek Fanfic' to read is 'The Alternate Path'. It takes the characters on a different journey where Joey actually decides to pursue her art career in Paris right after high school, which creates a whole new set of relationships and storylines.
Definitely not. Dawson's Creek is a work of fiction. It doesn't draw from any actual events or real people. The plot and characters are products of the creative imagination of the show's creators.
I'm not sure specifically as I haven't delved deep into that particular 'Dawson's Creek' installment. But generally, they might be about relationships with a spooky or mysterious twist, perhaps some ghostly encounters in the town where Dawson's Creek is set, or secrets that are unearthed in a rather scary way.
You can start by looking on fanfiction.net. It has a large collection of 'Dawson's Creek Fanfic'. There are different categories and ratings, so you can easily find something that suits your taste.
No. 'Dawson's Creek' is a fictional drama series. The 'Scary Stories' in it are probably the product of the writers' imaginations. They might draw inspiration from common horror tropes, but it's not based on real events. Writers often create such stories to add an element of mystery and excitement to the overall narrative of the show.