While definitive proof debunking God is not possible (at least not now), atheists still make the stance.
Most of the agnostics I know do not believe in a God, why not just say “agnostic atheists”? Same with “agnostic Christians”, “agnostic Pagans”, or “agnostic Buddhists”?
Everybody on this planet is an agnostic, truly. But calling yourself an agnostic is just like calling yourself a thinking person.
The only premise I see an agnostic to make is: I will not believe unless motivated by logic or evidence. Atheists say the same thing.
But calling yourself an agnostic in religion is simply a redundancy. It states no premise. It commits to neither side in the argument.
If I were to say that I am an agnostic when it comes to Santa Claus, that would be laughed away, because most people older then 12 are “Santa Claus atheists”.
Same with Orisis, Apollo, and the Russell’s celestal teapot. Not agnostic, but atheist.
Therefore, I will say that being a ‘God agnostic’ is purely useless. I was never an Allah agnostic or a Vishnu agnostic, merely an atheist on both accounts.
While we all truly are agnostic as to these matters, people normally will take a stance, either agnostic positive or agnostic negative.