The difference there is that the restaurant has to have a brick and mortar "tasting room." A "porn site" only has to have a virtual presence. The same goes for the "booking agents." To "work," at least temporarily, the arrangement simply has to be inaccessible in a form which can be presented in court.

A better format would be an online "school" for porn film production. So the site could charge "tuition" and act as a way to match "actors" and "producers." Any additional transactions between parties involved in the shoot could happen outside the website.