I think for many the process of self discovery starts with the eroticism, the sexual thrill of cd'ing for the first time...if, as in my case, it's late in life, you want to participate in that and you find others like you on the Net. But typically one progresses beyond the thrilll toward the seeking of wholeness of the person, which is achieved by getting in touch with the feminine self, which for us expresses itself by dressing.
So I don't look down on those sites -- I look beyond them, as in, that's what I thought interested me for a while and then I began to understand what it was really about...now, it's really not sexual at all except within my marriage, which is where it belongs. In fact, when I first discovered those sites and the relentless aspect of dressed-gay-male dating that dominates them, I doubted that CD's were really heterosexuals, and began to wonder if I was. But I quickly felt that these were not my people, and that I was something else. So in that way spending time on those sites was useful for me, as it surely is for many. For still others, though, the sexual fetish aspect of crossdressing is all there is, was, and ever will be. My hunch is that for many crossdressing men it's a "gateway" toward the more grownup results of the process.
And I do agree that such sites don't represent who we are to the rest of the world very well at all. It will be a great day when the ads on this site are for Chevrolets and Target and J.Jill. That will mean we have entered the mainstream of society, at least commecially. (Hanes really ought to buy in here, don't you think?)