Its just destruction testing, taking a product to the limit to see what it takes to make it fail and then examining how it fails. Pretty much everything you own has been through the same process, just not by some nut wearing a gas mask on Youtube....
Its what it is, he'll continue until he accidentally stabs himself, when the videos stop coming we'll know whyI replied this after his video - "I don't think there will ever be a situation where I need to hammer my knife with a giant rock. I think it held up pretty well."
He just said "ok." He was much worse to some others, going on about how it's not a "true" combat knife after one said that it's not a bushcraft survival knife, but a combat utility. Pretty much, if you questioned his methods at all,he sort of descended on you trying to make you look stupid or dismissed what you said, which is what he did to me. His tests prove nothing other than that knives eventually break, some before others (although that could be a problem with that one particular knife, it could be the order in which he did the destructive "tests," or any number of factors).
It's ridiculous to declare that a knife will break on you in the field just because one particular example from one brand of one model of knife didn't last as long as another particular example of a different model (and brand) of knife. And if you question it at all your either an idiot to be made fun of or an idiot to be dismissed and ignored. If he was honest about the so-called "test," I'd have nothing to say about it at all.
I have nothing else i wish to say about "Joe, x"