This is just going to be political theater. Everyone already knows that unmoderated anonymous boards are cesspools of hate, the obvious recommendation is to do moderation. The government can't infringe on free speech, so this is a waste of time. What are you hoping to get out of him?
Only way this turns out to be substantive is if it leads to a push from the Democrats toward a constitutional amendment in regards to hate speech, which I could see happening.