We don't all have to agree ALL the time to have a good conversation.
What makes a good conversation, community or party even...is a good mix of different personalities with a variety of viewpoints and opinions. Good conversation based on this type of personality mix, can stretch our mental muscles and imagination. It can coach us into denial, or ease us into a change of viewpoint...but it rarely leaves us untouched.
Now...I have to admit I haven't started many threads...and I should think about doing that...but other than that..I thought most of the posters on the Gripe board happy with the way things are.