What is so extraordinary about it? Much of my career has been spent evaluating argumentation and Steelfish's arguments are horribly flawed (as many have pointed out in great detail) and therefore, ultimately and utterly non-compelling.
Personal testimony is of limited value. Counter-examples can be easily constructed - the Tiber is routinely crossed in both directions. There are several people on this thread who can provide their own personal testimony as to why they left the RCC.
That comment means, you didn't even read it. If you would post the references of some Catholic clergy who have swam away from Rome, I would certainly read them.
I left the RCC for the most important reason in all of creation. I knew I could not live up to their plan of salvation requirements, and I did not want to go to Hell. So, I went to the Bible, and found that faith comes by hearing, and hearing by the word of God.