Not really snooping, it is an attempt by a private enterprise to enforce copyright laws. Although I don't agree with the judge in providing the information for those that viewed clips I do believe they should provide the information for those that posted it. Posting these clips is a form of theft. Now what you have to remember is that digital evidence such as that being provided is hearsay evidence and inadmissible in court on its own merits (meaning it can only be used in support of other evidence).