The cross section of GCA posters for tastes, knowledge and geographic diversity in not just urban centers is far more widespread than any magazine rating panel. Collectively we are more eclectic in our exposure to other courses than a list of all the ussual suspect courses. And, we at GCA debate - not just numerically rate. Discussion of the merits of anything trumps a numbered list anytime. We may say a course is a Doak scale 6-7-9 etc., while we also continue with a discussion of why. That kind of information is far more instructive. People, and architects can read the various threads and actually determine what we are thinking. You can't do that reading a magazine list and short attendent written article introducing the newest years ranking.
Now, Tim Liddy is a archie and he thinks GCA has a "profound" effect on design and ratings. Doak seems more reticent to say that. I haven't seen Jeff Brauer's work yet unfortunately, but if I understand this correctly, he has himself mentioned that he has at least utilized some retro-design concepts on a few of his most modern courses and has made a serious effort to get back to some original intent on a few remodelling jobs he has undertaken. Did he do that as a result of reading our comments for the last several years? I think that the mere fact that archies are keenly aware of the praise and bashing that goes on here, and grudgingly admit that there is a collective baseline of real knowledge of the subject of design, design history, and maintenance issues amongst the body of GCA posters is testimony enough that GCA has an influence. You can decide for yourselves if it is profound, emerging, or minimal.
But, keep this in mind. What archies ears aren't going to perk up if he finds out a group of 40 or so ardent GCAers have planned to do an outting-gathering at that archies newest course to have a look and speak for themselves? Some archies know the effect of that and count on it for the buzz because they are confident the design is solid. Others, might poo-pooh such a gathering as a non-event. We are begining to know which archies fall into which camp, I think.