Thats not how supply and demand works. She can charge however much she would like, but that doesn't mean there is a high demand for her product. There is plenty of nude women on the internet. She (Beshine) is a rare novelty, but she is only a novelty item. She has differentiated herself, but in a industry (Internet Porn) that has hundreds if not thousands of other places to go, she isn't unique enough.
Also, people are allowed to complain when something bothers them. Yes, it can be annoying at times, but sometimes there is justification for the complaints. If Beshine.com is more expensive now, I will be terminating my subscription. At $29.95 a month it was already very pricey. Her current content, although updated regularly, does not warrant a price increase. I can think of better things to spend nearly $360 a year on anyway.