First of all, there will be the overall CF rules. Flaming, blasphemy, spamming, copyright, for example will be handled by them. Subforum rules will probably have to not clash with them.
Howwever, Erwin has stated that subforums - like this forum - can set up their ownsubforum rules and limit debate.
Meaning -
you can vote to keep the definition of Nondenom. as in the forum sticky that we already have:
http://www.christianforums.com/t2936040-please-read-before-posting-.html
And since the compliance to the Nicene Creed is now not the determiner of what is Christian,
you can vote to furthur define Nondenom members as Trinitarian (that is a biggy in my book!!)
You can vote to limit debate in this forum to only nondenom members - in other words, you can vote NOT to let nonChristian religions/beliefs (aka atheism, hinduism), and nonTrinitarian beliefs (example Mormonism , JW) be promoted in this forum