Generally speaking, threads on the Religion Forum may be "open" or "closed."
Open threads are like a town square, posters may be anti-[pick a confession] or pro-[pick a confession] as long as they abide by the guidelines.
Closed threads include devotionals, prayer threads and threads designated as a "caucus." They are treated as if the discussion were a church meeting behind closed doors. The assembly is not to be disturbed.
Any thread can be designated a caucus provided it is not anti-another confession - or in either the article or replies raises any issue which another confession might need to rebut.
So, I could (as an example) open a Baptist tread (and call it a caucus) and say anything I want to and exclude anyone that dosns agree?