Both these posts seem to clearly indicate a need for BETTER PARENTING, not physical punishment.
Particularly your example Jester...where do you think that bully child learned his negative, physical behaviour from? I'm glad that the child stopped bullying other kids but would it not be better if he'd not learned to start doing it in the first place from his own parents?
We've been banging the "better parenting skills" drum for more than a decade now and look at what society it's producing... Look at all the bullies ranging in age from 10-16, it's epidemic. Kids that have grown up with no punishment that makes them think they shouldn't do something is what we're getting.
No consequence = no reason to change behavior