Like jks, my rank is of value to me because it represents what people whose opinion I value think of my ability. The belt itself is meaningless; the stripes my sahbum gave me after my IV Dan test, which he took from the belt his sahbum gave him when he was awarded his IV Dan (the belt my sahbum's sahbum was given as a IV Dan) - those are priceless to me, even though they are only a pair of red pieces of fabric, each perhaps an inch wide (if unfolded) and maybe 6 inches long - because they represent his opinion of me, that I am worthy of such recognition.
As several others have said, color belt ranks serve another purpose: they motivate students at lower ranks, and provide clear guideposts for instructors in regards to what students can be expected to know. Having a syllabus for color belt ranks also helps students to know what they need to learn, and the sequence in which they will learn it, to help them organize their knowledge. By the time a student reaches black belt, s/he has learned how much is left to learn - and the learning itself becomes the goal, rather than the rank.
I have personal goals that include learning all the requirements for the next rank, but they are because I enjoy learning for the sake of learning; I will test next, if ever, when my sahbum says I am ready, and not before - nor will I ask about testing. Rank is no longer a motivating factor for me, but I will demonstrate my knowledge and abilities whenever I am asked to do so, and in the meantime, I will continue to learn to improve myself, because that is what is important to me now - but I didn't understand that as a color belt, and don't know if I would have had the motivation at that point to get to where I am now if i hadn't had color belt ranks to motivate me when I first started TKD.
That sums it up well for me. Thanks Kacey, you saved me lots of typing! Good post.
I don't judge myself but leave that to my seniors, peers, and students. I have earned various ranks from various people and organizations and I consider them testimonials that I have in fact trained and progressed, but the certificates that mean the most to me are the ones directly from a teacher that I personally trained a great deal with that I consider to be my senior. It is a personal accomplishment to be recognized by them.
If a student feels that I can help them toward their goals then I am happy to help them. If they feel I am not a good fit for them there is never hard feelings on my part.
I like to keep it simple.