Banned because too bad the Commissariats ranks are immune to such blaspheme. So prepare to sith your pants in fear. The Emperor protects the faithful for our faith is of adamant will. Your weapons are harmless against those who believe.
Banned because billions of dead guardsmen, astartes, and faithful imperials of scream in testament to the falsity of that statement in the warp.
In space, no one can hear you scream. They were obviously found wanting in their service to the Emperor. Those who scream out in fear upon death are not true warriors of the Emperor. Banned because for every loyalist who dies, ten more shall take their place!
Banned because if the vocals are terrible, we need to kill more heretics then so only the loyalists can be heard. Our songs are angelic to the point of being devilishly addictive.