Athiesm doesn't have a monolithic community presence (or a group of monolithic community presences) like most other religions, so this kinda thing is good, if only for self-reinforcement. Deciding for yourself is all well and good when you know that most people are sensible and tolerant of other religions and that there are others out there like you, but when you've grown up with religion all your life the more active branch of athiesm is important, if only to jump-start critical thinking skills.
Imho.
I got into a religious chat with two christians yesterday on campus. Took up my study hour but I didn't mind. It was interesting. [Apparently God > Morality, for the record]