<human>: Give me the gist of the text in a nutshell

My friend, we'll call her S, has a job many people would kill for in the fashion industry. She's only been there a year and unfortunately it's more "Devil Wears Prada" than "The Hills".

I get that sometimes after a really bad day you need a good vent. That's what friends and family are for, not Facebook.

Not to mention that she's on the hunt for a new job - surely in this day and age most companies will do an Internet search before hiring someone. I'm not sure what her privacy settings are but if I were a potential employer, I would not hire S based on all these negative work-related posts.

I went to visit her for a weekend and t came up naturally in conversation, I said I didn't think it was wise to make those kind of posts and she brushed it off saying "I'm not Facebook friends with anyone in the office".

Today she's after posting yet ANOTHER one, I really feel like I need to say or do something to give her a wake up call. My sister "friended" S on Facebook recently and said she thought it was OTT, so it's not just in my head.

I live in a different country to S and we've never Skyped. We usually keep in contact through Facebook or whatsapp, anything I do say to her will be text based and missing the "human" tone so I really need to phrase it carefully as I don't want to upset her or cause an unnecessary conflict.
<bot>: Friend keeps posting negative comments about her job on Facebook. I think she's doing it excessively and potentially putting her future career at risk by doing so. What should I say to her to make her stop that won't ruin our friendship.