I didn't feel like you were talking down to anyone at all. I found your explanation to be very clear and informative. Based on your description of what can happen when the gas flow is adjusted too low, I think I have to go back to the college welding shop and check the condition of the 1-1-101 cutting tip I was using yesterday. I was in a hurry and I knew that I hadn't adjusted the acetylene flame high enough, but I thought, apparently mistakenly, that I could use it as if it were a smaller flame. My material was thin, and what I really needed to do was to change out the tip for a 00 or 000, but I didn't. After cutting for a short time, the torch started machine-gunning. I stopped using it, although not that very instant, I'm sorry to say, and when I was putting the equipment away, the tip and the nut were too hot to touch without gloves and the torch itself was hot even a few inches down from the tip. I hope I didn't ruin it.
So no, please don't think that you're talking down to anyone. I'm experienced enough that I teach this stuff to people who have no experience at all, and it seems like every day I find out that there are important things I don't know.