I would enjoy this thread/section if it were to become a reality, however, I would like to add a caution. A lot of times, we as members of the forum tend to get into opinions that are not doctrinally based. The Church/Priesthood leadership is quite clear on this in the Handbook #2: From 5.5.3 we read:
Leaders ensure that teachers use the scriptures, the teachings of latter-day prophets, and the approved curriculum materials as outlined in the current Instructions for Curriculum. They help teachers understand how to supplement the curriculum with Church magazines, particularly the general conference issues of the Ensign and Liahona.
I teach Gospel Doctrine and I used to teach Institute. As an Institute teacher, they kept a tight hand on us as teachers. (At least they did in my area). Unless we could back up anything we said with something from the scriptures or the words of the prophets, we were not allowed to "offer our opinion" or "speculate" on a doctrine. Personally, while I love to offer my opinion on this forum and a lot of us do on many topics, I do find it disturbing when threads are started whose very titles call for speculation and opinion. Most notably and offensively, "Mary was Not a Virgin?" In my opinion, we would do well to stay away from this kind of tempting conversation. Just the question alone invites one to question God's integrity in bringing His Son, Jesus Christ to earth in the purest manner possible. To engage in this kind of "speculation" is sin against God.
So, with the Gospel Doctrine section you are thinking about starting, I would encourage one of the "rules" be, that on matters of doctrine and thought, that whoever posts, be required to back up their statements (within their post) with scriptures or words from the prophets and other leaders of the Church. This may seem tedious, however, if it is going to be a "learning" thread, why shouldn't it be a requirement? Then, it would force people to "search" out answers instead of just "going by the seat of their pants".
In my opinion...