I felt the same way, but lately, well its just changed and its no longer fun to read or participate in, JMO!Well, I did enjoy them for a while. I like to see everyone's viewpoints and why they feel that way. I think that I can learn something from everyone. At least I try to do so. You are right that no one changes anyone else's mind, but I have always liked listening and participating in a good debate.
However the nasty name calling is a real downer.