Before starting such an endeavor, would you weigh in on whether you would support having apologetics threads like I described above as 'caucus' threads?
However, a thread that describes your confession's understanding with regard to Scriptures, history, news or whatever can be a caucus.
It would be best if the other confession is not even mentioned in a caucus because then there can be no question at all. Or if there is a mention, it must be a simple fact which is not subject to shades of meaning, interpretation or dispute. Otherwise, the other confession has an interest in making a rebuttal