""I don't question your dedication to the program. But also, don't question mine, based on my adornment of the uniform. If you came across me at a campfire, would you size up my dedication and experience based on how much bling I have? Or would you treat me like any other scouter? ""
Looking at someone who wears AOL or Eagle then you can tell as an adult the level of experience they have with being involved in the program. Being a new person and seeing someone with the knots for say the cub scout program you can get a sense that this person has been down the road we are also traveling and might hold a certain amount of experience or insight that as a new scouter I might find useful. I think the knots for the most part (not all) promote this. What I see when I see these knots are a scouter who has put in years of experience for the boys, not that they put in years of work to get a little piece of embroidery.
If you call it bling you might as well call what are sons are wearing bling. I can think of no way in which the wearing of such thing does any harm to the boys or the program. If it makes for a better program I don't care if people are wearing pink tutus.