Mike, I would agree with your last 100% except that I think many who participate in this site are directly involved in the industry as architects, superintendents, owners, managers -- probably not as many as the passionate dilletantes like me, but it seems there are many. So it's not easy to generalize about the "typical" GCA participant. Many have a great deal of industry experience, many don't.
Having said that, I loved your Cateechee course and you know how much I love old Athens CC. More to follow on myweekend trip through the sweaty Deep South! I'll also be publishing more details on the Cuscowilla outing. Thanks for your hospitality in Athens.