Hard to say, but there's a history of the bands themselves taking themselves that seriously, e.g. - https://en.wikipedia.org/wiki/Early_Norwegian_black_metal_s

Hard to say, but there's a history of the bands themselves taking themselves that seriously, e.g. - https://en.wikipedia.org/wiki/Early_Norwegian_black_metal_scene https://en.wikipedia.org/wiki/Early_Norwegian_black_metal_sc...