In Europe there is a tax on blank CD's to compensate the entertainment industry for piracy related losses and so again it is the consumer who pays the cost not the artists.
and if pirates were shut down, you wouldn't have to pay that tax.
So, sure, tell on the person selling 100's of CD's out the back of his car, but telling on someone buying a 5 dollar pirated CD is just going to divert the resources of society to a somewhat trivial transgression.
or better yet, if you know that someone is buying those 5 dollar pirated CDs have you ever thought to tell them the whole story. to tell them about revenue lost by the artist, about how (at least in the US) low legit sales can hurt an artist by causing low confidence by the label so there's no next album etc. how pirates have caused the government to raise the taxes on black CD/DVD sales to everyone.
probably not. but if you did, maybe some of those folks that wanted to save a couple of bucks would stop and the demand would dry up and the pirates would stop.
I had a friend that was downloading movies left and right and I found out and had a little talk with him about it. Because I am in these industries and I know that he's taking money from the artists, directly or indirectly. He had no idea. the whole thing started because he was griping about why the writers and actors in hollywood were going on strike. when illegal downloads happened into the convo I caught him in a guilty face mode. He tried to argue with me that he doesn't make that much money to buy them for real AND they take up too much space in his tiny apartment.
I pointed out three things to him
1. he's got a Borders books 4 blocks away and their members program is free and sends coupons all the time. plus as you spend money they give you these goofy points for credit in the store
2. another 3 blocks away from that is a gas station that will pay him for his rabid bottle and can recycling and he can use that money as his 'movie fund'
3. netflix. for about $15 a month he can rent dvds, watch them and send them back with little effort. and the way he watches movies it comes put to like $1 a movie, sometimes less. plus he's not piling up clutter on things he bought but didn't really like after all.
I made a deal with him to try that stuff for 6 months and it wasn't a better solution (or at least as good) as downloading off torrents and usenet (where the quality is flexible and folks like to password etc) I would leave him alone with his morals. Guess what. He is the one that told me about hulu, the new imdb downloads etc. He is the one that discovered the various new iTunes sales, not me. He actually cut his cable back because he says he doesn't need a lot of it anymore. He can stream the shows with only like 4-5 ads online. And as the networks and studios come onboard with the new channels for viewing, he's actually helping shows stay alive.