We can all point our fingers at government agencies and blame them, but everyone who downloads movies and music that they haven't paid for and then decide they're not going to pay for it even if they like it are the ones to blame.
I'll admit to using file sharing services and they have a legitimate use. I've downloaded CD albums to replace my scratched disks and I download TV shows after they air in the UK (I only got into BSG because I downloaded the pilot after hearing someone say how good it was and then I went on to but the complete series on DVD and then replaced that with a BluRay boxed set), however I always preorder the DVDs/BluRays from Amazon.
"Abandonware" is a different kettle of fish.