That guy is a nut job I have seen him on several of the Narnia thread attacking C.S. Lewis and his works. If it wasn't for those books especially "screwtape letters" and "Mere christianity" I would still be an atheist. It's hard for me to see somebody that can barely write attacking the writer who showed me Christ.
God bless you. This person sounds like some "Christians" I have run across on the internet who have such a narrow and rigid view that anyone slightly to the left or right of them are seeds of Satan. They think the people that will make it heaven can be counted on one hand, and of course that includes them.