Most fansub groups operate through Paypal. But Paypal also has an acceptable use policy that said groups just might be in violation of. Hm…
The idea here is to toss off a friendly email to PayPal’s compliance department. You know, something that just inquires as to the possibility of copyright infringement.
You’ll get a form letter afterwards.
And a little more personal letter.
And if you’re lucky… something will actually be done about it.
See, if enough people contact PayPal, they will generally just shut down the account automatically. It’s how Google operates with Youtube and why if a bunch of random people enter copyright claims against a video, it, and the entire account, can get pulled from the website, sometimes permanently.
Not that I’m advocating you do this to groups you don’t like. And I doubt any of you would take the literal seconds it takes to send off that email anyway. It’s just, y’know, food for thought.
Further reading (one of my first articles): http://crymore.net/2010/09/17/fansub-donations/