bleeding brakes

I'm not twisting anything. I was wondering if there was something beyond what I thought that you were implying about allowing air to be pulled into the system. Turns out that there wasn't but I'm open to learning from anywhere.

I don't own a pressure bleeder, therefor I have no idea how long the fluid it has been exposed to air and absorbing atmospheric moisture. When I'm working on brakes I want that new fluid to start out with the highest possible boiling point, so it is always from a new, sealed container. The pumping method is what I ALWAYS finish bleeding with, no matter how I mostly filled the system.