"I don't know" can be inherent to any position, including theism, since it's an answer to a question regarding direct knowledge. What we're talking about is opinion. It can be evidence-based or not, but there is no "I don't know" option available in that context. And again, you fail to articulate how exactly this alleged difference exists.
Do you always have "opinions" on things that you have insufficient information on? :bugeye: Do you "believe" my nephew's football team will go to the championship? Please Register or Log in to view the hidden image!
God, there's a lot of hypocrisy in this thread—or is it naivete? I'm not sure but I certainly suspect it.
Which concept of god are you referring to? Zeus, Allah or the Cosmic Muffin? Have you heard all concepts of god? I'm sure I haven't. EDIT: If it'll make you feel any better. I do believe that Allah, Jehovah & Zeus do not exist. As to pantheistic concepts of god, it's a little more difficult to have any certainty about. While I do not believe the universe as a whole is conscious and alive, I am conscious and alive and I am part of this whole. And the universe does obviously exist.
I see no reason to wait for man to invent more hypothetical concepts before we make a decision. "God" as a plural or singular entity, as an omnipotent and omnipresent revelation-machine, can be safely assumed to not exist, as any such conceptions of it seem to originate from cultural myths and superstitions of antiquity. We're not even talking about certainty. Do you have to be certain in order to have an opinion one way or another? I'm not certain the pantheistic concept of God is false, but I still can say that I believe it is. I can base that on the same criteria I base my opinion of theistic and deistic gods, and while I'm less sure of this concept's validity, I don't need to be sure in order to say "I don't think this is real."