Shitposts are important ecosystem barometers for banter; an early warning guidepost to approaching the maximal allowed discourse.
Without shitposts, you have no constantly governed North Star in your community because you have no measure of its distance – only shallow and stricting fear of nonconformity. Like fish that choke without oxygen from water burbling over brooks, without shitposts your dreams of a blooming dialogue will dry into a wasteland.

(Edit: Shitpost in this instance is a Twitter term for out-of context random posting without a larger purpose or theme. Think dril)