Originally Posted by Bluefoton
Fading, overheating, boiling, thermal dissipation, and all of the issues people raised on here - they all are outside of the original post, as they deal with repetitive braking with intervals which do not allow sufficient cooling - and cooling here is the ONLY issue. On the first U-turn or twistie in a canyon, stock brakes will be perfectly sufficient regardless if it's a 165hp NA or a 700whp STi (corrected for the vehicle's weight an speed from which it is decelerating). On the 10th turn, temperature effects will chime in - but NOT a lack of intitial "breaking power".
Depending on where the posts you are referring to are in the timeline, they are likely responses to the original (since edited and clarified in big red) post which was more of a blanket statement that big brakes will not make your car safer, no matter your power, and are just for looks.
A lot of the responses were to the 'safer' generalization. More power usually means more speed, and that means more energy that needs somewhere to go. So canyon runs, fade situations, and big heat-sinking rotors were brought up.
It's since been corrected to a more specific point of: bigger brakes will not shorten your one-time panic stop distances. Though getting nit-picky, you could argue that there's a possibility of shortening the distance if the overall mass of the big brakes are less than the originals...