Warhammer fandom elsewhere on the internet: *nerd bros with memes from 2011 and vaguely weird vibes talking about which primarchs could beat up which*
Warhammer fans on Tumblr: Omg. my guy. My dude. My little humfus blumfus. My skroinky paloinky. My blorbo. Littlest of meow meows. *points towards Deathkiller Skullscream the Vile, Lord of the infamous warband the Boneflayers from Planet Murder, whose least significant warcrimes involve torturing civilians to distill hard drugs out of their neural tissue (its more potent if they die screaming) and owning an entire planet as his own personal torture chamber which he goes to to unwind after a hard day of orphan murdering and slave trading*
One of my favorite parts about warhammer books that feature space marines (especially chaos space marines) is that they are all catty bitches. Every single one is basically a high-school girl who loves starting drama. They can't go five minutes without making an underhanded comment or calling each other a bitch it's very entertaining.
Few get as much respect in the Benevolent Hand, as cultdancers do. When their face is obscured by the mask, they stop being a part of the family, and become fully dedicated to their role, creating performances that adorn celebrations of the cycle and tell young ones about traditions and history of the cult. Cultdancers are not only a source of entertainment - unnatural flexibility and toughness, brought up by training, is helpful in battle, making them capable of dispatching of overwhelming forces of the enemy by sudden and lethal attacks.
They are Rotfather's assassins.