It is an interesting piece of news, but...
All I see coming out of making this an open topic, is a massive pile of snark.
Even if a real debate managed to come out of this, it would have no focus. Anything having to do with creationism would be "on-topic".
Other admins may think otherwise, but I'm not going to promote this one.
Adminnemooseus
ps: Regardless, a better topic title would be nice. Something like "Answers in Genesis responds to a "Why I am an atheist" message".