I'd already looked that up. There are many more.
The point in just about all is artistic license with an intent to shock.
Knowing Coulter's shtick, that fits her, too. She is satirist, commentator, comedienne, etc.
She is a shock jock. Her entire schtick is saying things you can't believe she just said.
Frankly, if she didn't appeal to guys who like emaciated women, she'd be nothing more than an obscure harpy.