It could be anyone. How do they know it is Shinji who is doing it? I don't doubt it's him, but how do they know?

Also, I don't think the users should be surprised that people are continuing to use subs. I guess it's sort of a shocker that people are ripping the paid quality stuff haha. While I don't think the people who payed should feel bad for being jipped, I also think they shouldn't be surprised at what HS is doing by now...