Explain why you do not consider someone a troll and why you agree with their views.
First, I don't consider him a troll. As you and others have pointed out, the definition of troll is NOT "someone I disagree with."   
I up vote him because I agree with many of the points he makes and like that he makes them with a sharp wit. 
He points out the Church's faults  (and that's a good thing),  while you refuse to see that it has any.