Wayne,
I understand where you are coming from and if such a system were workable and somehow enforceable then I'd support that but I don't think that's realistic.
From where I sit, I'd much rather just go and play a course and not even make it known that I'm a rater. Who needs the attention? I sure don't. And, in the case of any public available courses I just show up, pay my freight, and get in line like everyone else. Even when it's costly, such as the $175 I paid at Falcon's Fire this fall (fee plus club rental) I'd rather support public golf whenever I can.
It's the private courses where one doesn't have a connection that becomes the problem. Often, the only way to play is to announce prior that one is a rater hoping to play there and asking if they can accommodate you at a convenient time for them. And, just so everyone knows, the Pine Valleys and the Seminoles and the Oakmonts and the NGLA's, and most of the old-guard established clubs couldn't care less if you're a rater or not. You either get invited thru a member or you don't play...simple as that.
I'm not sure about the other magazines, but frankly GW doesn't even wanting us approaching those clubs whose ranking is already established through years of play. Unless some wholesale changes have taken place, we are encouraged to see only "Priority" courses, and I can tell you that those are highly weighted towards modern courses, period, or classic courses in out of the way locales, or other courses that for one reason or another get nominated but haven't had much in the way of rater visits.
The issue with comping where i think Sean misses the boat, and perhaps you don't realize as well, is simply this; if every private course that hosts raters comps them, which a very high percentage of them do, then there is absolutely no reason at all to favor one over the other in terms of rating bias or anything else that would negatively impact the integrity of the final scores.
I have to chuckle when I consider the fact that I've been treated pretty amazingly well at some courses that have had simply awful architecture (and were thus rated as such) and been treated like the weekend maintenance staff at others where inevitably the greatness of the course made it worth the shabby treatment and was accorded commensurate acclaim.