Which advice? The part where I recommend not stabbing improperly sized and unstabilized terminals into high-current-capacity clips and trusting $1000+ hardware to it?
No, the potentially fatal advice that 12V (80A) isn't dangerous.
Okay, I know this post is 6 weeks old, but nonetheless I had to reply to set the record straight.
12V is not dangerous, period. If you don't believe me, ask any car mechanic (
and here's a link). The 12V battery in your car is capable of producing hundreds of amps of current, far more than any DC converter you have in your house, including your computer PSUs. Yet your car battery is completely safe to handle. You can even bridge the terminals with your hands and nothing will happen. Sure, if you wet your skin you might feel a shock (similar to putting a 9V battery on your tongue), but it's just not going to hurt you because 12V is insufficient electrical potential for overcoming the resistance of the human body to deliver a fatal amount of current to your heart. When you're handling live 12V leads, your biggest worry should be making sure not to short them. Don't worry about getting a deadly shock, because it's just not going to happen.