Oh don't get me started on "Sell outs" I've always been very adjacent to the metal scene but had no idea that the same argument applied. I think what opened up my tastes more was when I got into synthwave/Electronica massively about 10 years ago and branched out from there.
Spent my formative years in the punk/alt scene. So it was always frowned upon to venture outside of those genres. Then in my 20s I started allowing myself to enjoy all genres. Haven't looked(listened?) back since!