If someone wants to debate warez that's okay with me. Just don't give links or tell people where to get them.
Similarly, if someone wants to argue that doing drugs is a good thing, that's fine too, just don't tell people where you get yours.
Vanilla Ice's point is valid: If he wouldn't buy the software anyway, how is he hurting anyone? That is the case with any intellectual property.
No reasonable person will claim that piracy in which someone who might have purchased something chooses not is harmful.
My assertion is that people who say they would "never" buy something often do when they have to. The guy who claims they would "never" buy WindowBlinds, for instance, very well MIGHT buy WindowBlinds if they could not obtain it via a warez means.
The statistics bear this out. Contrary to what most pirate claims, registrations of software INCREASE as the restrictions on the free version increase. The people who try to say that no nag shareware is a better route for shareware authors are full of crap. While some people do purchase things they have the full version of if they deem it "worth it", statistically, most people only pay money because they have no other choice.
Therefore, statistically, warez DOES hurt because most people who claim they would "never" buy a given thing would in reality do so if they could not get it via a warez method.
Put another way:
Vanilla Ice's point of view is valid in the purist form. But in the real world, warez does hurt.
And stealing is still stealing and is morally wrong. It doesn't matter whether you can prove no one would be hurt or not, it's still wrong.