Why has an Athiest joined a Christian site, to ask Christians or christian like people to ask you to ask you questions about Athiesm? We know that there are people in the world don't want to know about God, and Christianity. We know that Atheist exists. We know that Atheist has a so called faith system, because faith is believing, and beliveing is faith. So therefore an Atheist has a faith system, to believe that there is no God.
So why an Atheist joined a Christian website? unless you are deep down searching for God, or that you have come to cause some sort of derailment, or that you are trying to question our beliefs, to say that we are wrong, yet you don't know yourself, because you refuse to believe in what Christians believe? So which is it? Bare in mind I am not saying that you are doing these things, but asking you.
You said to ask, I did.