Perhaps I could have worded that better, I apologise...
I would take a skeptical approach to comments on cc.com, particularly those involving your life safety. You can't be sure of who you are talking with, what their background is, and even what the intention of their post was. Likewise, the poster can't possibly predict the variables that will be presented to you on a given day when you have to make those life-dependent decisions, even if the poster is an acknowledged expert in the field.
It's been said a million times, but nothing can replace hands-on training under the supervision of experienced teachers. I would consider any advice here supplementary at best, highly suspect at worst. But you probably already know that.
As Twain wrote: Be careful about reading health books. You may die of a misprint.