Also another danger with self-pub is that the authors themselves could quickly flood the forum to promote their own works if they are permitted to do so. Not unlike what you see on the amazon forums.
Yes, but I expect there are ways to stop them, as they would have to sign up to the site. Agreed they could hide their IP addys, but they can't easily change their writing style. I think it is worth a try, we can always kill the thread if it gets spammed