I always try first to read and listen to everything with one question in mind:
"What can this teach me personally - that I can liken unto myself?" (or, worded differently, "What hits me as I read / listen - what jumps out at me?") Once I have focused on what I can learn personally, I then go back and try to understand what was being said overall - by focusing on very careful parsing of the words. I would rather understand only some of it than misunderstand even some of it. That's true of religious texts, non-religious texts and blog discussions.
Only after that process do I go back and try to see if I disagree with anything in it. (and that applies to how I listened to Christian talk radio as I drove the hills of rural
In "On Reading the General Authorities", the author, David Knowlton, said:
"Unlike other texts, I was raised to approach the Brethren’s writings with an attitude of prayer, such that through them I could feel the Spirit’s whisperings. It seems to me that idea/act is an important beginning for comprehending an approach to reading."
That sums up my attitude quite well: "Help me learn what I need to learn from this, before I try to understand it fully or look for points of disagreement."