I'm just gonna throw this out there and say that most of the zealots and hateful religious folk tend to be those that are actually pretty ignorant of what it is they claim to believe. In my experience, as someone becomes more informed about their own worldview and the worldview of others, they tend to become more reasonable. Not always true, I guess, but still, the real crazy people tend to spring from a cauldron of crazy. (Westboro Baptist Church)
A majority of my friends are atheists. They're cool, reasonable, informed people. They don't tell me that I'm stupid because I believe in something that hasn't been empirically proved. I don't tell them they're "evil sinners who need to be saved". I enjoy reading stuff like the Skeptical Inquirer; it makes me think about why I believe what I do.
It's just ignorant, hateful people who insist on being ignorant and hateful that get my goat, regardless of their beliefs. I've dealt with trolls, intentional and otherwise, from many sides of the question, and it just tends to be facepalmingly stupid.
EDIT AFTER PREVIEW DUE TO NINJAPOST:
Was actually typing out a response, but doubleninja'd
my 'atheism' is a religious viewpoint
*facedesk* Isn't that exactly what it's not? I personally became an atheist because every religion I'd ever heard of (that included a deity) was nonsensical (in my opinion). I don't believe in a god, and I don't follow any of the religions that don't, so am I then an areligionist?
No. Atheism is not a religion, but it is a "religious" viewpoint, as it has to do with religion/belief. Or at the very least a religious standpoint, but that's just semantics.
Pretty much this. It's not really important, anyway.
Also holy crap I'm really glad that this isn't a flame war, in before almost-inevitable flame war.