You make the point that religious topics should be open to discussion.
I would accept that point with the qualification that the discussion should be within the topic of the thread.
So if a topic is opened up on some speciic, limited, area of religious teaching, it would not be "on-topic" to try to extend the disussion to wider matters like whether God exists, whether the Bible is true, etc.
There is a sticky thread on the Theology forum, posted by dbates ("going beyond Religion 101...") , designed to keep posters conscious of the need to refrain from that kind of hi-jacking of religious threads.
edit on 10-12-2012 by DISRAELI because: (no reason given)