Most of the stories you'll find are well written, the grammar and spelling is up to par so that the reader isn't distracted from the story by various mistakes of the writer's. I don't know if that's thanks to the mods of the page or the fact that the stories you usually find are the top voted ones, meaning the more illiterate ones could be voted down to the lesser ranks. Needless to say, the stories are near flawless, and there's a little bit for everyone. Some keep you reading on for an hour or so, other's are short and still chilling. It's honestly the best place for people who love a scary story, and a good start for those of you looking to publish anything particularly gruesome. The link for the site is below, if you're brave enough, give it a look. You won't regret it!
http://www.creepypasta.com/