Keith's Girlfriend Posts Too Much

Keith's girlfriend loves to post on social media and it's starting to become a problem. He explained to Simon that he's proud of her and supportive since she's started to develop a sizable following but she's literally documenting everything she/they do and everywhere they're going in real time.

It all boils down to, he wants some privacy but also he just wants some of his girlfriend back. How do you think Simon advises him to approach her? How would you handle something like this?

Have you ever had to confront a partner about their behavior on social media? What happened, how did it go?