Would using a straightening iron be considered a poser thing for metal-heads?

I want to grow a long hair but this is incredible difficult with my hair. It is so thick that the hair stays with so much volume that creates a style of jewfro without curls. A straightening iron would help me and would make my hair more loose, creating a much cooler headbanging. I actually would like to base my style on Toki Wartooth from Dethklok. I know that this sounds weird but I really liked his style, I even already started growing a fu manchu mustache.