Also I think it's a good idea for people to recognize the difference between pain and injury.
Just my two cents.
I agree with you, but when you feel like your bones are literally bending and you wonder how much more stress it can put up with, I think that is a bit more then not wanting to deal with pain. I'm all for feeling some amount of pain during training (I want to know what it feels like). Sure, there is a difference between pain and injury, but it can be a very fine line and both can occur at the same time.