I was thinking about how the threads with "biblewonk" used to be. He only chose threads that dealt with specific doctrinal issues (usually Marian), he never bashed any Catholics personally (he only addressed doctrine), he listened to your responses and on a personal level was very pleasant.
What we see here is ignorance from people who just choose to bash Catholics on any thread that discusses Catholicism, they don't even have the rudimentary doctrinal skills to argue, so they launch into personal attacks. Perhaps they should study their Jack Chick comic books a little more and then come back.