This is an honest questions for atheists on yahoo!answers...?

I have seen a lot of atheists that say they don't believe in God for varying reasons. Almost all of those reasons are bound up in anger. Anger at their former religion, anger at those who were members of the same religion, anger at the way the world is, anger at bigoted people who everyone has a problem with anyway, anger that their own faith was lost so easily, anger at the events in their own life. A few are not angry, but they mostly agnostic ("I have no evidence God DOES exist..."). I just want to know if you consider yourselves to be any different from those who hate because they do believe in God? This question is not a "goad," it is sincere, but many who deride theists seem to enjoy writing questions about how stupid theists are or are trying to prove their point about an issue without looking for a real answer. If you are certain of the meaning of life, why do you feel as if you must incite debate through questions, instead of sharing your view through answer?