Great only Christians get to use the capital 'G'. That's hilarious.
Um... Do only Christians "get" to talk about the Christian god? What about religious scholars? Atheists arguing
against the existence of God? etc?
When you get confused by the whole God/god business, think of it this way- suppose you have a dog named Dog. Now, other people also have dogs. But they don't call their dog "Dog", because that's
your dogs name. They don't use the name "Dog" when they mean to talk about a generic dog, as in "the perfect dog"- it would be confusing to say "the perfect Dog", because so far as we know, only one person was silly enough to name their dog "Dog"- you.
It is unfortunate that Christianity had the singular lack of imagination to not come up with a real name for their god, naming it instead the (capitalized) proper noun version of the common noun "god"- but we can avoid
further confusion by minding our "p's" and "q's" (and our "god" and "God") when we talk about deities...
edit: Often times people use the capital G out off respect and other times people use the capital G to distinguish the greater deity from a lesser one.
People abuse language in all sorts of curious ways. Using the name of the Christian deity when you mean to talk about something else is nevertheless just misleading and unnecessary.
Just say what you mean.
(besides, alot of times when people improperly use the proper name "God" when they are thinking of something else, it is done as a concession to Christianity- offering an olive branch, if you will; as if by using the name for
their deity to refer to something else, which
we happen to believe in- since we don't really believe in their god, i.e. God- whether it be the universe, or some vague cosmic spirit or something- is more diplomatic and conciliatory and thus more persuasive... when in fact is just misleading and incorrect)