He's still low tier. People have won tournaments with Hugo and Sean in Japan too, buddy. ;d
Fully taunted Q is high tier. And Q wins
a lot more than Sean and Hugo and all the other shitty dudes.
Unlike twelve/sean/hugo etc, Q has some tools he can actually use; a kara throw, good tick throwing into his command throw, good damage combos and juggles, safe surprise moves (slaps and dash), good air attacks (HP and HK), and so on. And also he has a throw where he crushes your face against his rock hard metal knee. Can't argue with that.