Perhaps I am over-simplifying, but since agreement has not been reached on the current language, and III-C-(3) actually gives the provider quite a bit of lee-way to decide against disclosure, I propose the following:
the Provider has found, specific information, facts and/or circumstances that reveal the Requestor's trademark or copyright complaint is a pretextual means of obtaining the Customer's contact details solely for the purpose of contravening the Customer's personally identifiable information.
Personally identifiable information (PII) is any data that could potentially identify a specific individual. Any information that can be used to distinguish one person from another and can be used for de-anonymizing anonymous data can be considered PII.
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Terri StummeIntellligence Analyst