@InfraBlue,
By belief system I was not limiting it to a belief in God. I have yet to meet an Atheist who does not have a belief system, a working model of how the universe came about or the origin of man even if he adopts the beliefs of another.
I very much appreciate that atheists do not necessarily "believe" that there is no God, they merely build their belief system without anything resembling a deity.
Regardless of intent, I apologise to anyone I offended.
It does actually go both ways, misunderstandings and strawmen are popping up everywhere, in my original version of the OP I included a few examples, including the one you highlighted. But I felt it was wordy enough as it was. Perhaps it would have been useful to have left it in.