It might, but then you’ve created a whole new set of problems: if anyone can take down anyone else’s content with one click, they’ll do it against anybody they dislike just for the hell of it (this was the case on Tumblr for a brief period: the Report button almost automatically banned the user, until they immediately realized this was unworkable). So if you don’t want everyone to ban everyone, you need a moderation team anyway to handle false reports, and you’re right back where you started.