*************OK, I'm way late on this thread, but I can't help myself.
I don't believe any atheist admits to being one in order to ridicule or shame theists. At least, that's not what they should be doing. If an atheist is discussing the matter, it's because the matter needs to be discussed.
We need to start having these conversations in public forums. It's one thing to have faith in your own personal savior, but we need to start having open and honest discussions about the terrible things that can, and inevitably do, come from organized religion. From the countless, never-ending, genocidal wars in the Middle East, to the evangelicals trying to put Creationism in our schools in the US, we need to start making it clear that religion, at most, should be a personal venture not fit for any public forum.
You can be a good person without religion, and so saying a person "is of faith" needs to stop being talked about as a virtue. George W. Bush's faith is why stem cell research isn't funded on a federal level, so faith can really screw things up when its values are forced upon a society.
You can have your God, but don't tell me that my kids have to learn about it in a public school, and don't tell me that we're not trying to cure diseases because your faith says life begins at conception. Enough with the BS.
M*W: Yea for stem cells! Excellent post. I agree with you on all counts.