I wish I could understand the perverse pleasure Catholic-bashers take in savagely attacking things about which they know so little. Like a schoolyard bully, deep down inside they must feel very small, and this behavior somehow ameliorates their feelings of inadequacy.
I think many of them are spiritual children and react they way children react when challenged - nuh - uh!
I think this is also why it's so difficult for them to have a conversation with someone with whom they disagree. Many just don't have the tools that come with spiritual maturity.
I think it's less a source of pleasure for them as it is a childish need to attack in order to maintain their arrested development.