There’s zero chance he would call someone a “cunt” in the old slack channel. He answered all sorts of questions, often repeatedly.
it really was once, but that dude deserved it for his behavior
Jbg promised 1.3.5 to Mac in 48 hours. But did not delivered it. That person asked him about that and said that you promised that 1.3.5 in 48 hours. At that point jbg lost it and started that. So in my opinion "that dude" did not deserve it.
he's a guy in New Zealand
I think that you are wrong here.