I believe that what you suggest is possible and I intend to create such a forum! I just discovered these forums and want to create a forum for the type of discussion you are suggesting. But first I am in the process of a data dump on my own blog.
I agree with you that most posters might not be interested in discussion. I don't have much time for discussion either. All my life I've fought against that "what makes you think you have something to offer" or "why should I believe you?" mentality. There are so many individuals shouting out for attention that it is easy to get lost in the crowd. Everyone thinks their own material is the best! Chuckle.
My response is a large data dump of what I consider the core teachings of the western mystery traditions which I have accumulated over the years through personal experience. That data dump is simply to create a little space for myself and a bit of credibility. That will be finished by the winter solstice. Then and only then will I try creating a forum and I won't be posting much because it will be for others. My own material won't be in the forum either. The way I look at it is that I will have my say and then I can let others have their say.