You seem to assume atheists care about converting people.
That I feel is a reasonable assumption to make-- if the amount of verbal vitriol that's leveled at people who believe in God (or whatever) on atheist/religious discussion forums is any indication, a great many atheists DO seem patently interested in swaying others to their views. My very best friend in the whole world hurt my feelings badly one time when he ridiculed me for saying that he couldn't prove there was no God-- he said that if I could stand up in any way for "belief in ghosts" then I must be nothing less than a moron.
If someone says that to someone who's making a reasonable argument, then it certainly seems that that person DOES desire for the other person to believe the same way he or she does-- or face ridicule. Otherwise they would just let it alone, right?
If one does not desire to change the viewpoints of others by making a good case for one's own views, why write about one's views at all? On discussion forums I almost NEVER talk about my personal opinions or beliefs (and if I do I label them as such) because I very seldom care if anyone agrees with them or not. The only people I argue with are my homies-- because our differences of opinion cut a great deal closer to the bone, and formulating consensus or agreement is a more important matter with one's friends or family (though of course it is not always achievable).
As a side note: The above incident occurred many years ago. Recently, after I told this same friend about a dream I'd had in which I had spoken with his recently deceased grandmother, I asked my friend if he was still adamant about there being no Creator or afterlife. His response: "I'm not sure anymore."
