Sharp: Closing a door

Agreed. That's why I think there are some deeper personnel issues at root here other than just the use of bad language or ripping apart someone's code (even to their face.)

It's not pleasant to have someone tear apart your code, publicly, in front of you. But there's value in that, even if it includes a lot of swearing and irritation. What's not useful is letting that segue into a personal attack on the developer in question.