With regards to MK's daughter...
She seems to be cultivating some sort of showbiz career... her boyfriend is an actor, she recently worked with Natalie Portman at some showbiz event at the RAH etc etc
Part of cultivating a showbiz career these days is social media, so if she posts something, she wants people to see it, otherwise she would just have a private account for her friends.
She posted a pic of her arse in a bikini yesterday for Christ's sake...