If you don't post the content on your site, you can rely on the DMCA for protection provided you registered a DMCA agent.Nice guy-- I want you to reread what Oscar said.
I also wouldn't be surprised good cyber liability insurance companies didn't require this-- sort of like banks extending mortgages require home owners insurance.
If your in the cyber business, let third parties post stuff to the extent that you are considering insurance for what they might post, you should certainly file a DMCA agent.
Of course I know I didn't follow your instructions to provide a good cyber liability insurance. But then, my impression is Matt and the ELI team are the only ones who can moderate us. And I judge that it's better for this thread to contain useful guidance for people who might, in future, come across the thread. A list of "good" cyber liability insurance agents will not benefit them as much as being told to register a DMCA agent.