The "SocialSpy for books" only works if 1. They have the plugins nessasary, and 2. its not automatic they would have to type in a command every time to see what they are writing. I believe thats how it works.
Now I basically Disagree with this because like everyone else has said above me, You get muted, you loose ALL communication with EVERYBODY. They don't know what you're writing in the books and they arent going to waste there time checking everyone that is muted to make sure they're writing just to there friends and not cussing out people who they hate. And a book is worse than typing because you can actually use explicit language in it, resulting in feelings hurt X2. Basically the only thing I recommend was the plugin to tell someone "This person is muted" and thats about it. Learn from your mistakes everyone else has to.