We have had one perfect Folk Nazi in the history of Mudcat, and that was in 1997. Her name was Elsie, and she didn't last very long. She never had anything to contribute. Her only purpose was to attempt to exclude anybody who didn't fit her very narrow definition of folk music. We have had others who come close, but nobody has ever matched Elsie. I'm glad she didn't prevail.
Of course, it's worthwhile to guide the direction of singarounds and venues and discussions - but it's quite another thing to have the exclusion of others as one's primary mission.

-Joe-