From the website:
The point is to provide a place where people who are interested can find out about atheism and atheists.Tags: religion, atheist, atheism, education
Even so, there is undeniably a hope amongst the people contributing to the site that it will in some way help to spread the type of world-view that includes atheism. And as such it might seem like a useless example of ‘Preaching to the Choir’. But that metaphor isn't completely accurate.
Every publicly available article, website, and discussion has a small but real influence on our discourse. People do change their minds. I believe that simply by being available this site advances the cause for reason in a modest way.