I will not comment on the original thread referenced in the opening of this discussion, but I will offer my "two cents" on the topic of taking the "high road." It has always been my understanding that taking the "high road" meant walking away from a situation in order to diffuse it, or because you know that any further discussion will only be detrimental and can end up with someone at either the position of attention, parade rest or the front leaning rest. An addition definition of the "high road" is realizing that before the point of no return. Once that line is crossed, there is no more "high road."
I tell Soldiers all the time that words are important. Think about what you are going to say. Think about what point you are trying to make. Think about the possible ways that one may interpret what you are saying. Think about the second and third order effects of what you are going to say. Granted, that is a lot to think about before you open you mouth, or hit enter after you type a response to something, but it is important. Sometimes the difference between a very candid, pointed and beneficial discussion and something that takes a nose dive as soon as one opens their mouth or hits "enter," is thinking before one speaks.
Just food for thought.