User blog comment:TheStarshipCommando/A little question.../@comment-26030957-20160510171549

The reason it is not recommended is because it has become a cliche that is over used and usually done badly, like black hoodies and 666.

That being said, though, breaking down the fourth wall can be an interesting thing to do and is something that came to define post-modern literature. In the horror genre the first example that comes to mind is Wes Craven's Scream which really took it and ran with it. But even in Kubrick's The Shining, Jack calls Wendy "a confirmed ghost story, and horror film addict," a statement that definitely breaks the suspension of disbelief between a fictional work and an audience.

If you do decide to take that route, be aware of what you are doing. What are you trying to say? Are you commenting on the nature of story in a modern world view or just trying to be clever and glib?

Breaking down that wall between reader and writer can help to ease a fast pace and offer a philosophical break in tension, but it can also retard the natural flow and progression of the prose. So use it wisely, and good luck!