Oh good lord, Karkat, it's just hair. Signless very neatly refrains from mentioning that if Karkat continues to be in the Arena and continues to die and have his body reset, he'll never reach the age of eight at all and it won't be a problem. That would be too mean to be a comfort and he doesn't have enough cruelty in him to do it.

"Demonic is taking it a bit far," he says instead. He's always rather liked his weird face prickles.