It's all about timing. Doing this in front of a bunch of new reps from the org you're working with probably isn't a good idea. I think people should be free to be unhinged on boards or in familiarity with other comrades.
One of the best ways I've turned death threats around is being equally as unhinged and sending them photos of their family or close friends. Doesn't take long to de-anonymize these days. We all can fuck around, can't we?