The definition is Q=IC, not Q=C. Although and what we were discussing a particular case Q=IC,I=1 => Q=1*C, in other words per information.
ok if C = 0, and I = (whichever number)
I * C = (whichever number) * 0 = 0
any number multiplied by 0 = 0
IC = 0
Q = 0
intelligence = 0, braindead people have 0 intelligence