Just a thought....
Given she tagged the bikini company, I think it was just like when the other housemates have photos with their e-cigs, coconut water etc. I remember seeing this company ask her if they could send her a bikini, which they did, so she is thanking them. Yes, she could have just said "thank you for the bikini" but then everyone would be asking "who is the kid in the video?".
EDIT- she probably should have just posted a photo of just herself tin stead in that case
And you all know I like Jade, so call me a Jade worshipper if you want, but she is working hard to get a career in acting - she is doing acting classes and auditions. And of course she is doing modelling as well, because we all need cash to live. Sure she doesn't have a degree or profession, but some of the other Housemates had that, and have thrown that away, and don't seem to be actively doing anything to get into acting/presenting etc. (eg. Whereas Ed did that course etc.)