Does Atheism Lead to Nihilism?

[Mudhammam]

God's nature is The Good (as the greatest conceivable being) and those properties simply determine what goodness is. So if God = The Good, to restate the dilemma would “Is The Good, good because it creates The Good or because it recognizes The Good?” Well, neither one – The Good is good because it is The Good. It does not make sense to ask this further--to keep pushing it back.

I like this statement.... God is "the good". It's a redefinition of the term "god" and an attempt to bring a whole lot of baggage to the simple matter of "what is good"?
Anything that's good in the world is in "the good", right?
Is this "the good" conscious? If so, then how would you be aware of that?
Is it aware of its goodness? If so, how would you know that?
Or is it just "the good" as an abstract thing?
Could this abstract thing (the good) be what the people attribute to the events they perceive as positive to themselves or their peers?

That's part of Euthyphro's dilemma which Steve dismissed out of hand by way of the apologetic method otherwise known as circular reasoning, 'member?