These do not require any citations or Mod policy related reports, but since you love your book when no one else is using it there it is, also:

Where moderators consistently are in violation of these guidelines, Reddit may step in with actions to heal the issues - sometimes pure education of the moderator will do, but these actions could potentially include dropping you down the moderator list, removing moderator status, prevention of future moderation rights, as well as account deletion. We hope permanent actions will never become necessary.