I just noticed this topic. It’s of interest as I observed many such discussions of the Fine Woodworking magazine forum, years ago when I frequented the place as one full of learning for the then-novice me.
American woodworking traditions are, like the rest of America, a peculiar mix of the can-do-and-try with rabid individualism of a rather macho kind. They will invent imaginative and novel ways of achieving woodworking intents but often in a fashion that is highly risky, as some sort of additional badge of honour.
The culture manifests also in the tools, particularly machine tools which have dangerous features built-in, as the individualisitas find this danger adds to their cowpoke pose. Stacked dado heads and, indeed, table saws or other whizzing machines without guards or other safety stuff are seen as “manly”.
In the Fine Woodworking forum discussions, up would pop a fellow or three to tell us of his tale of woe concerning such a machine - how it bit him, threw a plank at his head or otherwise did serious damage. In the USA, the damage is not just to the person but to the wallet, as to fix a cut-off finger or a serious plank-induced concussion costs thousands, The macho-men are often also uninsured for this eventuality as they are, well, too macho for that socialist insurance nonsense. 
Personally I’m paranoid about the potential for tools to do serious damage to my valuable person. After all, it only takes one incident to alter your life seriously to the worse.
But, if you are infallible, like American macho-men claim they are, feel free to cut yourself down with a mad-tool.
On the other hand, you’ll struggle to find a table saw in Europe that has an arbour long enough to take a stacked dado blade-set.
Lataxe, still whole.
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