Well unfortunately, the problem is that most bands will not have the legal backing and power (i.e. money) to be able to pursue legal action against these places that do this stuff. Plus, I mean I can see the logic behind thinking "well it pisses me off but oh well we don't see a dime from this anyhow" as we can surely relate to that, but at the same time, a big part of the reason none of us make any money is because of the fact that shit like this happens and nothing is really done about it. The music business in general is designed to make everyone money except the actual artist. It's hard enough to be able to make money and continue what you're doing in this biz without having to contend with people who take it upon themselves to decide that your music and hard work ought to just be given away freely to anyone who wants it, much less some people who think it's okay to profit from your music, even at 5 cents a song, when they basically did nothing to deserve it. And if your music is being given away or sold on one of those crazy Russian download sites, forget it, the laws there regarding this stuff are so convoluted, you'll never see a penny of that.
Stay in school kids, be a lawyer. Trust me. lol