How about: Individuals and small groups not held directly liable for comments on their blog unless its proven they're responsible for inculcating that environm

How about: Individuals and small groups not held directly liable for comments on their blog unless its proven they're responsible for inculcating that environment. "Safe harbour" - if someone threatens legal action, the host can pass on liability to the poster of the comment. They can (temporarily) hide/remove the comment until a court decides on its legality.