I'd think it would be hard for a folkie to AFFORD to be genuinely crabby. I've heard that Jeff Muldaur is a surly prick in his old age. Surprised to see the comment about Joan Baez. It's clear she doesn't suffer fools much, but I've always seen her as very kind and supportive of other musicians and her back-ups. She's had a running battle with judy Collins since the sixties, but the root of it was Collins' self-centeredness. I've seen Gordon Bok get a little surly, but he was provoked.