I think the parent comment is referring to: "PROSPECT SCORE This API enables you to know the purchasing potential of a user visiting your site. Users are classified into Gold, Silver, or Bronze based on their average spending value, frequency, and online transactions. Product details..."

Which, if you had been a Paypal customer prior to this, it might prove difficult to get your spending habits scrubbed if you no longer wanted to be a customer/didn't want your data available in this way.

How is this much different than a credit score? One is estimating your purchasing potential, while the other is estimating your likelihood to pay. Two sides of the same consumer purchasing coin.

In fact, I am surprised I haven't seen the credit reporting companies already pushing this kind of product. Seems like a natural extension.