It is possible to disagree with someone without misrepresenting or misunderstanding them. Unfortunately, we are too often in such a hurry to get our ideas out that we miss the opportunity to understand and learn from people we might disagree with. If we do not take the time to understand a person and their side we are merely creating straw men and an easy target.
It is hard work and time consuming to understand a person and their theology. We also have to recgnize our own theological biases in the discussion.
Just a thought after reading: Why is Wright Misrepresented and Misunderstood by so many of his Reformed Critics?