Apparently a trojan/virus has been released alongside copies of Cross Days flowing through the Japanese P2P networks, disguised as a fake installer. When activated, the program gathers data from the computer and pretends to take a survey of players, including asking for personal information. Once it's done, everything gets uploaded to a public website, alongside a screenshot of their desktop.
Once discovered, users can ask for their data to be deleted, but must first click a button acknowledging that they have illegally downloaded Cross Days. Better yet, the whole scheme is revealed in the fake installer's terms of service agreement, something no one reads.
It seems that public shaming is now a weapon being wielded in the war against warez, though obviously the implications for identity theft and blackmail mark this particular stunt as somewhat dangerous in its own right.