He has put that confidence to use in writing a range of delightful microgames for his own enjoyment. So great and terrible is this confidence that he writes his own profile in third person and calls his own writing "delightful.
You can reach out to Andrew via email (ThatOneGM via Google's email service) if you have any questions, to request a free copy of one of his games, or to tell him that his profile is badly written.