Anything can "damage" a brain. You are being a sensationalist once again . There is a difference between spanking and child abuse. Spanking can be benefitial as Dr. Jared Pingleton, a clinical psychologist points out.
If spanking was that harmful to the brain, our species would never have survived since it used to be the traditional form of discipline—and in a much harsher fashion imay add—for millenia. I am against spanking but I am also against one sided, over simplified, 101 psychological arguments for the sake of popularising "common sense" subjects.
When you touch these issues, especially with the hand of semi-pseudoscientific psychology, always make sure to provide the opposing arguments as well. It is impossible to make a controlled experiment on the subject. Your assumptions can hold no basis even if you manipulate statistical data to your liking.
For example this study demonstrates that they can do better in school. It comes to direct conflict with your "brain damage" post.
Physical Stressors can help a living being by making it stronger. Surely you won't beat the crap out of someone to make them stronger, but some form of punishment with physical warning works. Same stradegy applies to exercise. Just because you feel a bit of lactic acid burning your muscles, it doesn't mean you are really hurting.
P.S: Recycling your old posts in this manner is really pathetic penny grabbing technique. Like I said. You earned a place in my shit list. Be very wary of the generic nonsense you post in the future.
RE: The Many Harms of Spanking in Less than 200 Words