[intakexhaust]

Oh boy... I'm a metal head and also been into woodworking most of my working life, both as a career building and hobby. Operated many machines but since were talking wood, try some two-man chainsaws with 5 ft bars or 4 ft. diameter circular saws turning 540 rpm mounted to the back of a tractor hitch. Also have done many projects on a tablesaw with cutting very tiny pieces. Most of the time have run tablesaws without guards, splitters, riving knives including many vintage saws. Some would call that not having common sense. Never had an incident and have all my limbs, digits and eyes.

1- Machines have no feelings but if you don't feel good about the machine, don't use it. Its up to you only, not the maker, the employer, or a lawyer.
2- Know the machine AND the stock... type, grain, moisture, etc.. This is a lengthy topic but some examples: verify the rip fence is exact parallel to the blade, read the wood if it's bowed, knots, etc...
3- Don't be anywhere near an idiot running a machine.

That link... was that guy free hand feeding the stock and then he lifts, releasing pressure? He's clearly not confident, and instead could have used a longer board to rip and then cut his length. No wonder and don't get me started!

And about that Sawstop. Wonderful intention and invention BUT I CAN"T STAND individuals pushing for a law for the benefit and monopolize of a product and exactly what the inventor is doing. This guy is using BIG BROTHER GOV pushing it onto every saw maker.