Re: Poll: How meaningful are other people's aikido rank to you?
I believe the ranks are mostly for the instructor's use. It is a reference to which they may quickly glance and assume how much each person knows, and what they can teach without confusing too many people. I wouldn't say that teaching the basics for an upper class would bore them. Although it could, reviewing basics can be very beneficial to everyone no matter how high of "rank" they are.