Feels like I've been here before. *cough*
I fully understand how this guy feels, because I felt that way too. In fact, every once in a while, I still feel a little that way ... hmm. However, I shall persevere.
I think a major part of the problem (for me anyway) was seeing people wearing brown belts that would never (should never) be awarded that belt in another martial art - it reminded me a little of children's karate classes.
The difference now though, is that I do "get it" as so many people suggested I didn't earlier.
Stuart, it all boils down to the students in the dojo, which really boils down to the instructor.