You are a veritable fountain of debatable points. Steve.

For starters, it is perfectly possible for Atheists to be delusional about God, simply because delusions are perseverant, irrational thoughts, and anyone who is mentally ill can have them(even atheists), about just about anything.

Then there is the point about Richard Dawkins being the world's most famous atheist. Most people don't know who he is at all. In the US, when you mention Richard Dawkins, people think you're talking about the host of "Family Feud".

My vote for the World's most famous Atheist would be Hu Jintao, who is the Paramount Leader of the People's Republic of China. He is famous at least to the 1.3 billion people that he rules, many of whom are also atheists.

This statement is the most interesting, though:

"The only rational conclusion is that God is so unlikely that it would be foolish to live one's life as if he existed. "

Should we forget the Ten Commandments?

As to your comments about certainty constructed on shaky foundations; it's worth noting that you tend to speak in absolutes, which I note without further comment.