http://www.religiousforums.com/foru...tes/108982-why-do-you-come-here-atheists.html
there is a whole topic on your question.
first of all, a religion does NOT need a god.
second, you do NOT need to be religious to be interested in religion.
this section is called religious debates is it not do discuss religeon?
I would never want a believer to abandon god because I said so. but i wouldn't mind it when they abandon their religion by reason. I also wouldn't mind it when some one finds a religion by reasoning.
also, I am open to any religion IF I can be convinced to why it is a true religion (im a sucker for logics).
now what puzzles me is that you are frustrated with some one who questions your belief. If you never speak to different minded people, you will never learn anything signiffigant.
what is the benefit of talking to people who do nothing else than agree with you? there is no progress in that.
would these answers suffice because I can give you some philosophical, scientific and religios reasons too.