Jim Gilbert is discussing the relative worth of theology.
My thoughts are pretty mixed. In Mere Christianity, C.S. Lewis calls theology the science of God. It is very Modern sentiment. He harkens it to geography. You know where you are and your immediate surroundings, but you need geography to tell you how your location relates to the rest of the world and everyone else in it. Theology does something similar.
In general though, I think a lot of Christians spend far far too much time talking about God and not enough time talking with God. Deep thought does not necessarily imply deep faith.
There is an old saying "perfect is the enemy of good." I think many Christians, especially Christian bloggers, may be hitting the point of diminishing returns on theology (and philosophy) and would do better talking about more concrete topics like personal application.