I second your concern. There were a number of statements in that peculiar "Devotional" this morning which would cause any person who happened upon it to ask some legitimate questions. I simply asked a question, a question that anyone unfamiliar with the peculiar doctrines of the LDS Church would ask and my post was pulled. I've seen dozens of questions posed on the Protestant devotional threads and dozens of comments by non-protestants. Usually they are welcomed. To have a policy where there are no questions allowed is rather strict.
If I, as an ex-Mormon were to post a devotional dedicated to ex-Mormons who are now evangelical protestants and the reasons for their switch, would the Religion Moderator protect it from attack by those who are presently still in the LDS Church? Or would the devotional thread be pulled?
I suspect it would be the latter.
On the other hand, "Evangelical Protestant Caucus" is one I would recognize for a church-like thread and would protect just like I protect the "Catholic Caucus".
But again, please remember that passers-by are more likely to stop by the open threads than the church-like threads.
A "devotional thread" does not always make it a devotional, in the same way that an opinion editorial in a newspaper does not necessarily protect the paper from a defamation claim.