How about we split the definiton and lump people into different categories?Damn it, I guess that means I'm a splitter. I must be a splitter. This doesn't mean that I exclude people but that I do make distinctions between the music, driving styles or hair colour of different people. When I describe someone as having blonde hair I'm attempting to describe as accurately as I can what I see. This is not the same as saying Susan has blond hair therefore she is a good girl and David has black hair therefore he is a bad boy. It does mean though that I can appreciate Susan hair in its golden tints and sunny brightness and David's hair for its velvety look and dramatic elegance. Occassionally I find myself in argument with a determined lumper, but it seems to me that is because the lumper is reading other definitions into physical descriptions, or is misreading my reason for describing.
Certainly I agree that a folk club should be inclusive, but if the organizers of events are blind to differences of style, ability and purpose in the players than they don't help the players or the audience.