Half of those state the same thing I did. A mere disbelief, not an outright denial. Atheism today is separated into distinct categories, one of which is mere not giving a frak and not thinking about it, another is thinking about it but decided one doesn't believe and yet another actually makes the claim. Few atheists are like that and that's not "agnostic" because that one actually makes the claim that whether or not there is something out there, it's impossible to ever know. One can be agnostic and still believe that there is some kind of god out there.
If you are going to be pedantic, then fucking do it right.