I think all of us came in here with the intent of treading very lightly. We knew this could get ugly. XP
Heated religious debates on the internet (or even elsewhere) are, in my opinion, the worst exercise in futility. An Athiest calling a religious person an idiot or a religious person calling an Athiest an idiot goes nowhere real fast, and raarreelly, if ever, do these arguments lead to an actual conversion, so why bother other than just to argue pointlessly?
I think a person's beliefs are all up to the person, in the end. If they question something that leads them to changing their beliefs, or they may stay thinking one thing their entire life, either is fine to me. The one thing we should all agree to believe in is being a good person.
Believing or disbelieving, there is no valid reason to be a d*ck about this, I have seen Athiests who can be just as cold as a religious fanatic. IE "You're a ignorant fool for believing in God and will die believing in a fantasy" or "You're a sinner who's going to Hell for not believing" are both terrible things to say or assume. No ifs, ands or buts.
I genuinely believe some people need religion or at least some level of spirituality, and others don't. I'm not going to tease a Christian for their beliefs when, for all I know, they may need it in their life.
Everyone's different, that goes for their beliefs as well. I think we should be more accepting of this.