He offers a network of sites for advertising, does all of the updating of the website, pays a flat rate for the content she creates, and handles all of the anti-piracy. If she were to start over, she'd lose the brand (brookemarksTM prob belongs to phad), would have to setup billing, create a website, pay hosting fees, generate hype, and protect her content. I doubt she has the inclination or technical know-how to do it. That'd mean an additional investment of time to learn. Seeing as how she's in the twilight of her career as an internet model, it's just not worth it.
From this point on there will always be someone younger, prettier, and more daring. As it stands she's coasting on a decade's worth of name recognition, and camshow interactions. The people still subscribed to her site are emotionally invested in her. I highly doubt she gets new members on a regular basis.