Oh, vulgar. Oh, I see now. We can't be vulgar. Go it. What's next? We've lost. Soon we'll be like France and won't be able to videotape violence.... Our enemies call us every name under the sun and we have our panties in a bunch because Ann was "vulgar."
You can be vulgar, if you want. I'm vulgar often enough. But I'm not doing it on stage at political conferences.
The point is, maybe being vulgar isn't a great idea if you're ultimately trying to win votes. I've never seen it help the left. It's the when the left lose that they get driven to childish insults.
If you're just engaging in self-promotion, then go ahead and be vulgar at a political conference. You'll get the attention you want.