She didn't explain her reasoning publicly, so it's unknown.
That said, I believe (without proof) that she is rebranding away from health and fitness into a more glamor role. Her pictures were steadily focusing more on sexualization than fitness as time went on, to the point where they couldn't be posted here anyway. Now she probably is going that way full steam.
She doesn't belong here anymore, and I suspect she figured that much. Win for everyone.
She had loads of images on here and she has now chosen to not be on the site?
Any ideas why?