I would agree that the belief in the non-existence of god/s would perhaps constitute an argument from silence if not necessarily from ignorance, so it's a good thing that atheists in general don't profess to have such a belief.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'
