You know what I think? He didn't hate liberals. He hated Christians. He wanted to leave the impression that he is conservative who hates liberals, however, to discredit conservatives.
The right wing has been selectively pulling comments from left wing blogs to try and blur the line between author and anonymous poster for years and as usual the media quickly lapped it up. Well, check this out. It's a comment about the horrific shooting spree in TN. And Malkin screens the people that can comment on her site with great vigilance, so what does that tell you?