I went to the site, read it, then clicked "BACK" at the bottom of his page, and here is what I found:
"Man needs God like a fish needs a bicycle."

As much as I would love to attribute this discovery to the mysterious ways of The Divinity, Jackie, I am afraid the explanation is very simple. I found that site by doing a search at google.com for the phrase "Man needs God like a fish needs a bicycle." I had even emailed the author of the site to see if he knew who said it first, but unfortunately he had just seen it as a grafitto some thirty years ago and liked it. The author is not the gentleman I spoke with, but certainly does seem to share very similar views. I felt as you did about some of his extrapolations - the "killing witches" thing in particular.