Now, I know that the only thing we technically have in common is that we are rejecting unfounded assertions concerning a supreme being who transcends the observable laws of nature, but atheism for me is more than a disgust for a God who murdered his own son to save us.
For me it is about defining the universe in terms that can be proven through observation. To accept knowledge without evidence is the start of delusion.
Some atheists are under the idea that some people require delusion...that they gain some tangible benefit from defining the universe in false or misleading ways.
So is it better for a rape victim to deny the event or to face her attacker? Is it better for a widow to hope to meet her husband again or to accept the finality of existence inherent in life? Is it better for an athlete to believe his victory was a gift from a God, and not purely the result of his genetics and training? Is it better to believe your ex-girlfriend really loves you and would come around if you could say the right thing, or to accept that her rejection was simply that? Can we accept our suffering without lies?
I can understand that emotional comfort can be derived by softening the blows of the cold universe, but I am not so sure that that comfort is helpful in the long run. Making decisions with reality as your only guide will lead to decisions that will not conflict with reality. Making decisions under a delusion will sooner or later conflict with reality, time and time again.
These conflicts, in my opinion, are more harmful than the one the delusion was originally created to avoid. Each time you are forced to maintain your delusion in the face of evidence, the void widens, and from that void I don't think anything good comes.
Often those who finally drop their delusions feel 'liberated', and I believe this is feeling comes from bridging the gap, and closing the void, between our understanding of the universe, and what the universe reveals to us in everyday life.