I agree. Dude just touched a nerve. The vast majority of the things he's charging CCN with happened before I worked here. He's mischaracterizing the things that have happened while I've worked here. Etc. But yeah, I shouldn't over-react. Probably I shouldn't have reacted at all.
Meh.
It's good to defend your position but best not to attack, if you start name calling then you've already lost.
Rule number 101 of forum fighting.