Four of the Kardashian-Jenner siblings have launched apps and websites that require paid membership. Will that mean we'll soon start seeing tumbleweed drifting across social media?

Since the news broke about Scott and Kourtney's split (thanks to his alleged indiscretions with stylist Chloe Bartoli, among other things), Instagram users have taken it upon themselves to leave disparaging comments on Bartoli's posts, calling her a "whore", a "homewrecker", "ugly", and claiming she knowingly broke up a family.