Should we have an 'I Can't Believe it's not Folk' category - then people would know what it almost is?

I think that's my point - what we have now is precisely a 'Folk-Only-Not-Quite' or 'Like-Folk-Only-Different' category, but it's called 'folk'. To quote myself from further up, "[Seth Lakeman]'s working in a field ('contemporary folk') which is defined as like-that-other-stuff-only-better; both its opponents and its partisans feel strongly about it by default."