I enjoy it being an underground thing, to be honest it is what first drawed me to Black Metal, I started learning riffs from De Mysteriis Dom Sathanas and I started to get a feel for it, before that I only listened to Gothic music and Symphonic Metal so it was a pretty exciting change for me, the music being hard to get to is what I enjoyed the most as I remember the first time I heard nothing but nonsensical noise, there's a local scene in my city that plays Grindcore and some other extreme genres so maybe it isn't even that unpopular to begin with, still really fun, don't think most parents would like to listen to it they get scared with rap music with swearing so good luck with that (I don't think my parents care or are worried about it as they have heard me play, they don't like rap, reggaeton, trap and most obscene music though as they think it is really stupid).