I am one of the many innocent people who have been accused of file sharing by Copyright Trolls, my letter came from the now infamous ACS:LAW, but they have now been emulated by many more using the same system.
Their ruse is simple, Send out letters of claim with NO Real evidence beyond an IP address that they claim was captured using a frowned upon hack of Shareaza.
My REAL opinion of these companies turned when they started sending out Pornography claims, THAT is what I find most disturbing. People who HAVE to pay up without the option of having their day in Court. THAT is NOT Justice. Why can't they just go to Court? because the Lawyers, pitch the price of paying the "Compensation" at about the same rate as hiring a lawyer to fight it.
Things have changed in the last 8 years though.
I would advise people to read the "Speculative Invoicing Handbook Part 2", research these people yourselves, and find me at Slyck Forums, or on Twitter.
Do NOT Worry, Stand Strong