I think people are over analyzing her social media, pictures, etc. From what I gathered, I see nothing out of the ordinary.
Pictures with her in her underwear, showing cleavage, etc. is in the norm with the youth today. I would say her pictures are rather modest compared to most I've seen. As long as she's not revealing her private areas, there's nothing wrong.
I am 26 and girls/guys have been doing this since I was in high school. Guys take pics with just their boxers on; sometimes they take a pic with their butt mooning the camera. Nobody bats an eye but girls in bra/underwear or bikini is just too much.
If theres one thing to know about social media, take it all with a grain of salt. I cannot tell you how many times I've come across people who are nothing like they are in social media. Everything gets blown out of proportion. A quote here a quote there doesn't define a person.