I'm sure Jasmine would go public on Twitter, etc. if she wanted to, and be a great success. But that's not what she wants to do, as I understand.
She also has her limits in terms of the content she'll perform in her videos, and these are 'stricter' than some others set. We all probably want just a little more, whatever that means to each of us.
For me, these factors and her exclusivity to Dave's group of sites (including Captured Beauties) are part of her allure. I like to think I might bring just a tiny bit more out of Jasmine in my customs, because she 'knows' me a little, but I may well be fooling myself. The bottom line, though, is that she is brave enough to do what she wants and no more, not what others might be clamouring for. This way of doing things works very well for this customer, and, it seems, many other customers, Dave, and most of all Ms St James herself.