Yesterday, the mum-of-three put an Instagram follower on blast after they left a nasty comment underneath a series of photos she shared from a trip to Santa Ynez.
The precious pictures showed her youngest son Reign Disick looking happier than ever as he sat next to a horse, played in the dirt and rode a tractor. While most people said the snaps were ridiculously "cute", "adorable" and "beautiful", one troll said Kourt "really needs to cut his hair".
After noticing the comment, the reality TV star wasted no time putting the user in her place, writing: "She really need to not worry about kids that aren't her own. He is a happy boy."
Over 100 people replied to the comment and, surprisingly, the reaction to the whole ordeal was mixed.
"You are such a great mom and person. Love the long hair," one user wrote in support of Kourtney. "People really need to stay in their lane regarding children that are not theirs... this little dude and his mane are both gorgeous."
"She does [need to cut his hair] and she shouldn't be upset at comments since she chooses to parade her kids on tv and online. Plenty of celebrities have kids and never show them," another quipped, defending the stranger's opinion.
Earlier this month, she faced a barrage of criticism over her controversial parenting methods when she revealed her eight-year-old daughter Penelope— who she shares with her ex-boyfriend Scott Disick— had scratched their nanny's face.
While the ordeal shocked her sisters and mother, Kourtney's placid response to the situation angered fans with many arguing she doesn't know how to discipline her children effectively.
"Not trying to be the parent shamer or a judgy person but you need to get your kids in check now & take it serious now before they older because it only gets worse," one person Tweeted.
Kourtney later hit back on Instagram, replying to the comment: "And in my opinion beating children is not the way to 'get your kids in check'. When children are hurting or frustrated, the answer is not to physically hurt them."
"But they can hit other people when they are angry and frustrated?" a fan questioned in response.
"They’re children and she was clearly hurting inside so hurting her physically is not going to make anything better," said Kourtney who later admitted to being "shocked" by some people's strong responses. "How do we not know better by now?!"
Another fan chimed in, writing: "Kids don't usually listen to words they listen to actions," to which Kourtney replied that "in no way is physical harm OK for us."