Why do you post here?

I am curious about why some people post here too. It seems to me that there are three categories of people posting in this forum:First creationist who believe in God and usually hold some theistic religious beliefs, who along with debating are interested in converting others. I can understand why these people are here. I’m sure many hope to convert others or simply find evidence to strengthen their faith. Or maybe some are questioning their faith and come here because of doubts they have.Then there are those somewhere between religious and atheists who are truly seeking information and want to learn both sides of the argument. Their presence on this forum is pretty self explanatory.Finally there are the hardcore evolutionists/atheists. You can usually spot these guys by the sarcastic use of flying spaghetti monsters, magic, fairy dust, etc.My questions is for the people in the last category, the hardcore atheist/evolutionist. Why do you take time out of your busy schedule to argue with creationists who you consider dumb, uneducated or just plain delusional? If you categorize creationist beliefs out there with monsters and fairies why are you wasting your time here? Some of you seem pretty intelligent, surely you have better things to do. Or do you spend time on other website debating the existence of monsters, fairies, aliens, crop circles and any other ridiculous belief you come across? I am interested in hearing why some atheists feel the need to convert others to their beliefs.