For the time being I can only fully answer one of these questions, that being the first one:
1. Plugins are permitted, but only when they are clearly disclosed in the credits. Usage of plugins will also be considered during rating, and non-disclosure of used plugins can and WILL be held against people.
I will discuss the remaining questions with the other current judges, as they are valid concerns due to the small number of judges. I cannot assure that all judges will do their duty as I cannot see the future, but we will discuss these issues further before the jam begins.