Um, I would not say that superchargers are 'bad'. It depends on the application of the blower and the tuning setup. The guy is just asking questions about stuff he don't know.
Just a thought, if you are s/charging or turbocharging a NA motor, the throttle response is not affected by 'lag' in the same way an all turbo motor is. The higher compression of a NA setup means that you will still get that throttle response. It just means the old NA motor gets a kick in the pants once the turbo kicks in. In applications with most NA turbo or supercharged conversion it's probably safe to say that a max boost of about 6 to 7 psi will be heaps and safe to run. Any more and you will be entering 'on the edge' world. At that boost range, a supercharger will not be much different to a turbo. If anything it may even be better cos you have that constant boost thing going on.
So, if the motor has readily available parts that suit then it will make sense to use them rather than busting arse trying to make a square peg fit a round hole (Hmmm sounds a little sus eh?). In this case the turbo option is the way to go.
It's all in the tuning. Thats how hondas running 10:1:1 compression can still be boosted cos they have very good aftermarket tuning packages available.