Regardless of the knife I have in my pocket, when there is something 'nasty' to cut, I consistently reach for my 4" Voyager to do the heavy lifting. Truth be told, as much as I enjoy other brands, I rely on Cold Steel knives for about 70% of my cutting chores. Why? Because they perform as advertised and now with the Tri-Ad locks, I trust them even more.
As for the 'proof' videos, they show you what you could do with CS knives, not what you should do with their knives. I don't know why so many have difficulty with the differentiation. Where warranty issues are concerned, in the past, CS covered their folders for one year and their fixed blades for 5 years. Many complained that the time periods were not industry standard and Cold Steel listened. Their warranty is now without time constraints and is very much like Spyderco's warranty in nature, which is good enough for me.