Ach, I don't think he is any more lonely than the rest of us people posting reviews when we could be interacting with other humans by speaking with them.
It seems to me that he does not like unthinking doctrinaire Christianity, and find it offensive, which it can be, and his response is to piss all over it.
Looking at his user page, I am inclined to think that he knows he may offend some, so I believe he wears 'offensive' as a badge of honour, when the label comes from the right people.