Disciplining folks
What are you suggest "The Vatican" do? Scour the world-wide web, seek out heresy, go find the folks and scold them? Should an inquisitor find EVERY SINGLE website that disagrees with the Catechism and publicly excoriate them?
How would the Church get any good work done, if it concentrated on policing the blogosphere and the web? The Church will always have those who want to remake her in their own image, who want to injure her, doing their best to damage the message of Christ's Redeeming Love for all mankind.
There are 6 billion people on earth. Please. I just don't think the Church is interested in following your dictates. Or anyone else's in the Protestant cohort. Do you know any person who deliberately seeks to find Catholics in order to tell them how wrong they are, IN REAL LIFE? Either Protestant or Catholic?
The problem is that many see the Catholic Church as an Orwellian boogeyman and not as the teaching and nurturing organization that it is. Because many of the Calvin and Protestant strains of Christianity are based upon hellfire and damnation they project that belief onto the Catholic Church. Given the opportunity it is what their churches would become and they fear the power in the hands of others.
The kindest characterization is that they were bent as children to hate the Catholics and Catholic Church and the vitriol we see is Pavlovian, and not a product of thought, reason or even Christian values.