The Plotters is not specifically a campaign as much as it is a campaign setting.
The Book is a place cared for by the Author and there belief shapes the Plot. While this leads to wondrous things being possible, the Book is not inherently safe and not everyone would use the powers for good. Plot holes can threaten to kill countless characters and possibly even erase the entire Book while fan-fiction artists with enough power could do even worse. It is for that reason that the Scriptorium is the only institution allowed to teach Co-authors as well as being the only ones allowed to use these powers.