I am an atheist, but I fully support your right to believe what you want. I look at the atheist/believer debates as more of an intellectual exercise, not an attempt by atheists to convert anyone to their way of thinking. Yes, it does get heated at times and I can see where it might be hard if you have recently left or are still in the religion, because people are not a allowed to disagree. It might seem kind of out of control, or that people are being mean, but the reality is most of these people have been debating each other for years, so they actually aren't getting that upset about it. If it makes you uncomfortable, just stay out of those threads.
What is important to me here on JWN is mutual support for those who have been harmed by the Watchtower and bringing attention the the negative aspects of the religion. I think that is something we can all agree upon.
BT W, I was at a family gathering recently and was raked over the coals by a cousin because I admitted I was an Atheist. I didn't bring it up, she did, and I felt very uncomfortable, so it does go both ways. I wouldn't in a million years done the same to her.