The problem is that community owners should have the right to moderate what is posted on their community. If I'm a small-timer running my Space: Above and Beyon

The problem is that community owners should have the right to moderate what is posted on their community. If I'm a small-timer running my Space: Above and Beyond fan forum on a raspberry pi in my garage, I should have the right to remove posts from that guy who repeatedly posts child porn. Further, I should not be held liable for his content because I took a vacation from moderating, I should not be punished for taking down his posts if they look like child porn (but are in fact just sketchy looking), and I should not need to keep a lawyer on retainer to determine if any given post is in fact illegal. A publisher vets every single post, because the cost of publishing any one thing is fairly high. To my mind, the problem with Google, Twitter, Facebook, etc is not that they moderate content, its that they've been allowed to grow so large as to meaningfully impact the world with their moderation.