Cap'n,
I've decided to take a leaf or so from your book on your insistence that:
a. Only singers had the right to discuss singing.
b. You judged the significance of traditional singers by their ability.
In future, perhaps you should tell us your own personal experience in such activities as collecting before you venture an opinion.
Maybe you should audition before we give any credence to your views on singing.
Your irritating habit of hauling in (usually mediocre) revival singers whenever source singers are being discussed automatically rules you out of having a say in that topic.
Jim Carroll