Most people would not consider me a Christian (although I might differ with their interpretation); I won't fit into that box. Sectarianism is the enemy of truth.
The concept of the universe as a machine without a creator of said machine falls into category #1. It is a subset, or just another way of saying the same thing. If something has no creator, then it has no purpose or meaning.
For some reason, you like to twist my position that absolute morality exists into a desire to "be" morally superior.
You ought to ask yourself why you do that.
"Of course the nihilist simply snickers at your preoccupation with being morally superior to begin with."
Say I become an atheist. Say I decide I don't like you, I track you down and kill you. As an atheist, you are gone, poof. As an atheist, I could care less.
As a thinking atheist, this course of events must hold no moral advantage or disadvantage over any other state of affairs.
Conseqently, if you argue FOR your continued existence, I would argue that you are subconsciously also arguing FOR a higher state of morality, and the existence of God if you will. Morality consequently is a theistic argument, no matter how you might twist in the wind trying to be a nihilist.