It will kill virility but should reign in stupidity being broadcast. Why do they have a responsibility to 'reign in stupidity' in the first place? Who gets to

It will kill virility but should reign in stupidity being broadcast. Why do they have a responsibility to 'reign in stupidity' in the first place? Who gets to decide what's stupid and what's not? I understand removing illegal content. I understand providing guidelines around content that may not be acceptable for minors. I understand removing (or compartmentalizing) content that is "off topic" (such as a platform dedicated to eSports not wanting traditional sports content). But every attempt that can be made to 'reign in stupidity' means censorship of one form or another and will inevitably be abused.