I think we should all be grateful that GI3 was engaged in a niche sport instead of being the US ambassador to the Soviet Union. Only cockroaches would be alive right now.
It's all about perspective people.
EDIT: I stand corrected: 8 Animals That Would Happily Survive A Nuclear War
What he wrote on the internet, and the manner in which he wrote it, was for shock value - in person he was nothing like his internet persona.
As a bit of background, the early and mid-90s were a wild west when it comes to technical diving, something as simple as properly analyzing and marking your bottles was not standard practice. As a result, there were a number of fatalities. In a span of a few months he was involved with a body recovery of a student in tech training that made an improper gas switch (her bottles were not labelled), there was a guy that sometimes helped out the WKPP that also drowned at a non-WKPP site due to an improper gas switch (again, unlabelled bottles), then a few months later there was a 3 person fatality that included a student in tech training, the instructor and a third person. All affected him pretty deeply and he felt the only way he could get the attention of training agencies and the general public was by being as outrageous as he possibly could.