Teen Gothic

I’m both metal and goth, I’ve been listening those genres for years and the way I dress depends on the mood and what I have to do. But my question is: metalheads who don’t listen to gothic music can dress gothic? I know a few people that are just metalheads, they say they don’t listen to goth-rock, post-punk etc.. but they still dress with corsets, the typical Siouxsie makeup or victorian-inspired skirts. I’m not sure if this can be called mallgoth, ‘cause lately this subculture has gained its own meaning and aesthetic, don’t know it that much tho. So, what y’all think? I know this probably is a common topic but never explored it by myself..