I find it interesting how many people claim the belt color doesn't matter.... until someone else says that they can't wear their belt color. All of a sudden its an issue... Where did my respect go? I earned this color belt?
I always thought humility was the way to go. Yes, I have a black belt. The thing is that I have a lot more white belts than I have black belts. I have one black belt in Danzan Ryu Jujitsu. I have a white belt in practically every other art out there. (except for Shotokan karate now) I keep a white belt in my bag. When I go to train in other arts, I put it on, no questions asked. I will let them know I have experience, and what that experience is in... but I wear a white belt... and act like one, on their mat. If some guy, with 6 months experience is correcting me, on their mat... great!!! I am here to learn their stuff. I find it much easier to learn new things, when not trying to do the "Look what I can do" routine. In fact, when I go cross train, which I do a lot, I go to places where they regularly hand me my tucus on a platter. If I go some place and start taking people apart or showing up the students there, then they don't have much to teach me... I go find some other place, where they own me. These places are where I want to train, these are places that have something to teach me. (fortunately, these places are quite easy for me to find...)
The video at the bottom of the OPs article was great. You got your belt learning something different. You have emphasis in and expertise in a different thing. Not better, not worse, just different.
I think we all put way to much emphasis on rank and belt... even when we think we don't. I think it would be great for everyone, to put on a white belt again, and go train somewhere new for a bit.
The dojo we rent space out of has a bunch of instructors for the main art. They have classes morning and night, 7 days a week in their main art... so they need multiple instructors and one head instructor. One of the main requirements for being an instructor in this dojo, for the main art, is that they are regular students another another instructors class, in the main art. Even the head instructor must abide by this rule. I think its great. Everyone keeps a student perspective and everyone realizes that they have more to learn... even if they happen to be an instructor. At the end of class, we all take our belts off and become just regular people again...