This is the modern-day version of the "junk mail/fake bill" scam. For example, yellow page publishers used to send authentic-looking invoices to businesses telling them their yellow page ad needed to be paid in order to be published in the new directory.
In the modern-day world, this is how it works:
Your site host (Pair Networks) sells lists of their subscribers to marketers.
Shady third-world companies buy the lists from marketers.
Companies also buy computer files of public records from companies who collect this data.
Companies then use their computer programs to match up from different lists as much information as possible, to create a full profile of you.
They then put together an "application" from this information, and then try to sell you on the idea of using your site for porn/gambling/pharmacy ads. They will call you for you to "consent" to your application.