This site is hillarious in part because Thorne does such a good job at skewering the stilted, lifeless, non-style of writing most people have been taught to use for business communication. It's funny for lots of other reasons.
The author is David Thorne. http://en.wikipedia.org/wiki/David_Thorne_%28writer%29
George Orwell lived in Apartment 27b on floor 6 while writing the novel Nineteen Eighty-Four.
27b/6 is also a reference to a fictitious, paper, work form in the Terry Gilliam film Brazil, which will always be in my top ten favourite films.