It's my personal belief that informing, snitching, or otherwise sticking your nose into places where it has no business in order to satisfy one's self-righteousness, to stir things up, or for one's own benefit, is among the most base and cowardly of human acts. Just my opinion.
Define "places where it has no business", and we can talk. Is Google such a place? Is this such a place? Is sidewalk in front of your house when you're not there and somebody's breaking into your apartment such a place?
Along those lines...
Let the owners of intellectual property do their own damn enforcement and police-work.and let the owners of stereos and CDs and TVs stolen out of ground floor apartments while the upstairs neighbors watch do it too?
I don't dismiss the way this mis-hits your nerves, but I think you're drawing too broad a conclusion. The practice of giving information to the police on suspected law-breaking is not the problem, here or in the old U.S.S.R.: rather, unjust laws there, and arguably here (a can of worms I'll try to stay away from) should be your target.
I am certainly not a lawyer, but I seem to recall that it is commonly held to be a responsability of all citizens to report crimes that they see: under current law (though you are on record as disagreeing with it), posting somebody else's work on the internet without permission is very distinctly illegal.
If God had meant us to fly, he would *never* have give us the railroads.