I think your misconception is that content has positive value. Content can definitely have negative value. More is sometimes worse. The extremes are obvious (u

I think your misconception is that content has positive value. Content can definitely have negative value. More is sometimes worse. The extremes are obvious (users gain less value from a website with more bullying), but the principle is true even in the middle ground. While good advice brings value, bad advice (eg. medical, financial, etc.) causes users to seek value elsewhere, or causes their ruin and subsequent decrease in value to advertisers. Even when the content does not have negative value, if it floods content with positive value, people no longer get the value they used to.