Ben,
You cut me and I bleed red, blue and green Ross Tartan Plaid, so maybe I get riled.
Any professional society has the limted purpose of banding together wherever there is a common interest of all. For the most part, we provide our members continuing educmacation (via playing courses at our annual meetings, and seminars there, at the GCSAA, at a mid year educmacational event, and now even via internet conferencing) which make us all better gca's. We provide Contracts, RFQ's, Specs and other documents to the industry and general public related to gca. We preserve the history of gca. We work with other golf associations to promote golf in general and architecture in particular. We learn from each other a few weeks a year and beat each others brains out the rest of the year competing for jobs.
Despite differences in membership processes with bigger organizations, this is what all professional societies do. I think my above pp pretty much answers all of your initial questions about what ASGCA does. As to being a rite of passage, yeah it was for me. I learned of ASGCA when I was about 15 years old and wanted to be a member from the first time I saw their materials.
I am not sure what you mean by heavily regulated membership, but the five courses as an absolute minimum has been basically in place (oft refined) since 1947 when Ross himself was honorary President and RTJ was the VP. In some ways, we stick by the tradition as if it were our constitution. If Ross thought five courses was a good benchmark, who am I to say much differently? Yeah, we keep adding to the peer review to make the best effort possible to get qualified, enthusiastic and ethical members, since the group is in essence no better together than the overall performance of its members. We have tended toward the motto of "when in doubt, leave 'em out" (with due respect to the late Johnny Cochran for the chant)
Would we benefit if younger, untested designers were members? I dunno, but probably not as much as they would. And, we do have a lot of young associates in the group, so I am not sure what we are missing by your reasoning. We have made a point in recent years to interview and even get some of our new members to present some of their work so we can see what they are doing. Of course, we miss young independents who don't seek to join our group, or don't have the experience to do so.
I have to wonder if we were listening to someone who had done one course, but not five, just how much we would learn. For every David Kidd who hits a homerun early in his career we might be listening to ten semi-duds, who are unlikely to know more than the guys sitting in the room, no? In fact, most of us are almost as star struck as anyone else. We naturally like listening to Faz, Jack, Pete (even though we have figured out that he has exactly seven stories/parables about gca) etc. We like listening to historians like Whitten, Klein, and local experts wherever we go who can tell us about the courses there. We like (or need to) listen to environmental, financiing, or other experts.
IMHO, I figure membership is worth the wait and is (for me) a reward, not a right, privilege, etc. I tell young guys that I am pretty sure ASGCA will be here in five or ten years so work hard and get in. (I tell old guys not to wait, if they are the kind that won't even buy green bananas!)
I have enjoyed every minute. I wear the coat proudly. I just don't see the negative and sinister things in ASGCA that sometime pop up here, usually because a favorite son is not a member for one reason or another.