Sure, If you visited specific Warez sites, you could assume that the Ads served will likely infect your machine. And sure, the guys running the websites might not be able to cash out the ad revenue.
But the realization, that a lot of legit businesses today are in the same situation as sites who were run from shady servers in "digital no mans land" by guys concerned that some kind of law enforcement might ask who owns the site is either funny or deeply disturbing.