Numerous cases like this have appeared since the RIAA began their massive legal campaign. For all their effort, has it benefited them (or anyone) at all? It's been demonstrated before that the lawsuits, as a whole, are a losing proposition for the RIAA in terms of money – and it certainly hasn't helped their public appearance either.
The RIAA's more or less broken promise to stop suing people left and right has done nothing to benefit their reputation in the eyes of the music consumers. Though they insist that methods like lawsuits and making ISPs tax their customers is they way to save the music industry, they've yet to show any tangible evidence that what they are doing is right.