I don't mean to be a spoil-sport, but that's the kind of stuff that runs many addicts right out of the rooms...the testimony...or the insinuation type of sharing that basically says, "If you want the kind of recovery (or freedom) I have, you must believe in God!!" The thread was started by someone who was asking how they can recover as an atheist, not whether they should conform or be converted to the beliefs of others in order to experience the freedom NA's program promises.
NA offers us a program that has only one promise - freedom from active addiction...not simply freedom from drug use. Drugs are only a symptom of our disease and our ultimate problem is self. The steps provide us freedom from self, and with this freedom comes all the other promises some other fellowships claim. We don't have to be religious or believe in God to find freedom in Narcotics Anonymous.