People are human. It doesn't matter if you're technically in the right, or that you think things should be some way - if you piss people off, they are going to tell you to stop pissing them off and then eventually they will do something rash.
In this post you just drag out the dirty laundry again and go through it painstakingly, and then post it to a public forum (HN) for everyone to see.
Just learn to let things go, for God's sake. You wouldn't have been banned if you just said 'sorry' or 'ok, let's agree to disagree' and started talking constructively.
Your goal is to talk them round to your point of view, not make them never want to talk to you again for fear of you blowing things way out of proportion.