I read parts of your initial thread but was too tired to read the entire thread. Unfortunately, there really is no answer to bullying. It will always exist. As much as we want to believe that zero tolerance "rules" for bullying will work, they inevitably don't work. My only solution for you is to help your child(ren) get through these years with minimal damage to their self-esteem. Sorry for the pessimistic response, but this is the truth.
People will always get picked on, and I was one of them, as I did not "fit" the standard role a boy should play. Unfortunately, Darwin was right. It is about "survival of the fittest." I wish he was wrong, but he is not.