The Atheist And The Believer-Why Have A Discussion?

In my opinion, i can't understand why atheists and believers even bother to have discussions with each other here, since it is quite obvious that the two will never see eye to eye and going by most of the discussions i've read here,they end up arguing with each other and getting nowhere.i would like to think that those who question believers about their faith or existence of God are maybe on the fence or are searching for their own spirituality or belief in him, but,going strictly by the discussions i've come across here on Mylot, just as fervent and unmovable as the believers are, is just as fervent and unmovable the atheist is and while i believe one should hold tight to whatever they fervently believe in , especially when it comes to personal faith,trying to instill this in anyone who will not budge,in my opinion is pointless and gets neither side anywhere.