It's a serious violation of the rules here to bring in someone's personal details as ammunition in an argument, regardless of how wrong they are. Please don't do this again.
We have both clearly broken the civility rule and I apologize for my part in it, but if someone chooses to identify themselves I don't see how it's uncivil to address them by name. Indeed, I see it done fairly regularly here on HN.
It was clearly intended as an attack in this case, and that's not ok, regardless of how wrong the other person is.
It was not an attack. Being addressed by name is a natural consequence of telling people your name.