How is it I can call Nrvnqsr Chaos an ass name and no one bats an eye
Because while it is an ass name, it's technically more of a code name and the dude's actual name is Fabro Rowan and there's an honest to god reason why I call him that than Nrvnqsr(Even if it's supposed to be pronounced Nero because the Original Tsukihime will never get translated and unless he pops up in the Remake's Red Garden, no one is going to ever get that it's pronounced that way).
EDIT: To put it better, Fabro Rowan is his actual name but due to his experiments and his Reality Marble, he's basically like the Venom Symbiote and whoever the person in it is so that's where Nrvnqsr Chaos comes from... which is still ass.