We have Structured Debate, which has basically become just another area to post in.
We do not have a debate area anything like what I described.
Structured Debate had the ability to let the Oposter DEFINE 2 "topic dependent" rules in ADDITION to the USMB rule set. Was used for awhile. Was a pain for moderators because some of the rules specified were hard to enforce even if a moderator DID approve them.
Clean Debate Forum is basically similar to what you are describing.
The differences are --
1) We TRUST members to find a suitable topic for civil discussion with the caveat of NOT posting current hot political topics or current events. And often we HAVE to disallow a couple threads because the OPost is WAAAY too "lean" or too fiery to start a civil debate OR the topic is too current and politically hot - Just from the experience of knowing (at least on USMB) that "civil discussion" and hot political topics are not compatible.
2) Once a thread is approved for discussion, it is "opened" for members to be able to request the ability to post in it. When they make that request, they agree to the understanding the formal debate area is highly moderated with increased penalties for violation. At this point the the thread is basically a "poll" with no ability to post. You "vote" to be able to be included in the discussion.
3) A moderator opens the thread and the only people able to post are those who have agreed to the rules. Those who have not, will see the "you do not have sufficient rights to post in this forum"
4) At USPOL we also appointed volunteer moderators who have the power of a moderator, but only in the formal debate forum. (Again this was possible with VBulletin, unsure of Xenforo can do this, surely it can)
5) The thread is opened for discussion.
I dont get the point of #2 -- We have 3 "Zones" in USMB which allow choice of "level of moderation and the rules VARY accordingly. Zone 1 is civil discussion and DEFINES stringent rules for civil discussion. Members dont OPT IN AND OUT of those rules. Dont have to pinky swear that they will follow them in a PARTICULAR thread -- because that's already the expectation.
I guess I'm not understanding WHY -- if we have one set of Zone1 Civil Debate rules for the Clean Debate, Race and Religion forums -- that we have to VET every thread and ASK EVERYONE participating if they will obey those rules. WHAT is different about every "clean debate topic" that requires a "poll" about obeying the rules ?
I also didn't see it specified but ASSUME that folks that "pinky swore" to obey the rules under your scheme and DID NOT -- would be added to added to list of people "Banned from thread". Which is the same as "you do not have sufficient privileges to post in this thread (anymore)".
USMB mod staff DOES issue thread bans to members who are damaging and disrupting and/or ignoring the Zone1 rules.
The point of that being is -- ANYONE could slip in an F-word or a DAMN and get ejected, but at USMB there's the mod option to EDIT that OUT with a notice to member to "be more careful of the Zone1 rules".
USMB runs at a rate lately of about 8000 posts a day and about 210 threads daily. I'm thinking the board that this idea came from was MUCH smaller and tighter controlled. Probably didn't OFFER zones with pre-defined and KNOWN rules for moderation.
The problem at USMB IS that over the years -- our member list is now up in the thousands. Only about (roughly) 500 or 800 members that POST more than once per year -- but STILL -- BANNING them from a thread requires that we LIST EACH NAME in thread ban.
And if members want to check into a Zone 1 debate thread a couple days LATE or even a YEAR later - the thread is very likely STILL THERE AND OPEN. With maybe BRAND NEW members trying to access it.
So we would have to exclude maybe 300 or 500 people from participating in that thread. To my knowledge -- there's NOT an option to define ONLY the people who want to participate.
We actually TRIED THAT -- It's in the Structured Debate forum as "Invite ONLY Threads" where the OPoster GAVE A LIST of invitees and moderation ENFORCED the participation according to that list. We got HOWLS of resentment for that and people didn't want to brave the scorn about being IN "exclusive" threads on a forum like USMB. I thought it would be a GREAT WAY to offer a space for a folks to CHOOSE who participates, but it's not in use any more due to lack of interest and a LOT of very vocal resentment from the folks who want to brawl in EVERY thread in EVERY forum.