Brushing off the backlash! Kristin Cavallari doesn’t let mom-shaming on social media faze her.“To be honest, I don’t read comments on Instagram so I don’t catch wind of those [negative] comments unless my best friend, Justin [Anderson], decides to go on and read my comments and respond to people or whatever it is,” the Very Cavallari star, 34, said during a Thursday, January 14, Good Morning America appearance. “It’s really just noise, to be honest.