Our Perspective Dictates Our Reality.
If you are truly and honestly willing to engage in a discussion, then you need to be able to look at the topic being discussed from many different perspectives. Each perspective alters the resulting reality. The insights you gain from each perspective should provide you a means of understanding those involved in the discussion.
When discussing, acknowledge the common ground that is shared between those involved. Build from the common ground and enable others to understand your perspectives and concerns. Be willing to except others views and perspectives and validate them.
Really a discussion is designed as a learning process. If you have nothing worth while to discuss, stay out of the discussion. If you wish to follow the thread but not engage, more power to you. In the end, those who engage for selfish reasons, as was mentioned in previous threads, really have no place amongst the honest and pure learners.