Christians need to debate things and hash issues out. Iron sharpens iron and all that. But that should be occurring in a, and I'm loathe to use the term because of how it's used to stifle speech, "safe" environment.
When the Church fathers debated issues of doctrine and such they didn't ask for, or expect, the input of pagans. For obvious reasons. Nor did they air their dirty laundry for non-believers the world over to see.
I think "CCG Bible Study" should be re-purposed to this end. Clearly it's not getting much use as designed and I think this refocus will bring more conversations here that will build up the faith of believers.
Threads over there like "What Does Baptism Do?", "Something I'd like to get into

I also think the sub-heading to "Spiritual Matters" should be altered because, to the uninformed, it seems like the proper place to ask a question, and not the shooting gallery it actually it. "Spiritual Matters" really isn't the place to ask a question at all! Sure, there's a debate sub-forum, but it's largely vacant... and glancing at the titles of the things that are there, they seem like they should be here too.
That's just my two cents. Because, frankly, I want to have lively debates with my fellow believers, but "CCG Bible Study" doesn't seem like the intended place. And were I desiring the input of non-believers I'd post it in "Spiritual Matters" anyway.