I've observed that a question like "Does sacramental wine become the actual blood of Christ during communion?" is "not an appropriate question" since it's liable to be answered according to the opinion and background of the answerer, and a question like "Does God exist?" is "off-topic" because of its philosophical nature.
My questions are,
How does this site find it beneficial to the asker to suppress topics for which answers might not all be in agreement?
Why should an SE site exist that is so broad as to allow answerers who disagree on fundamental issues? For example, abrahamicreligions.SE would field far fewer questions than Christianity.SE and Judaism.SE. The current limitations here require that we ask no questions whose discussion might result in a unification of denominational doctrines, which is ideal.
How can questions of fundamental importance to Christian faith and practice (like "Who is God?") be considered off-topic, especially when considering the volume of scriptures and commentary that deals with the philosophical precursors of Christian faith?