LOL! I assume you mean 9.8 m/s^2. It's a decimal number and uses SI decimal based units. Are you so slow that you think all SI quantities and constants are whole multiples of 10? The value is expressed in decimal numbers. Do you honestly beleive it would be better written as fractional sums of 1/2^n? Like 9 + 1/2 + 1/4 + 1/16 + 1/64 + 1/512.....? Or do you believe the only acceptable number system should be represented by whole multiples of physical constants? Either way, you are going to have one piss-poor, clunky number system to use. You can go ahead and use it while the rest of us stick to something that helps minimize confusion.
No, I was just pointing out the stupidity of puffing the SI system as he was doing. It's a little different than the imperial system, but in no way superior.