My biggest problem with other atheists in general is they have an elitist attitude and try to push their views that there is no god on people who believe in God (whatever religion that may be). In many cases I find it hypocritical because they don't want religious points of view shoved down their throat, but then they try to shove their views down others' throats.
I can promise you I will never attack people for their religious views. I'm fine even discussing it. However, when I see attacks on any religion (or non-religion) I will, and have, fired back. I've defended Islamic and Christian posts on this site, and gone after an anti-atheist meme.