It's true that in the early nineties, just after the fall of communist regime, intellectual property wasn't regulated and piracy was sprawling, but a lot has changed since then.
Why nobody uses Iphone, Xbox, Playstation, Gamecube in Poland? Because it is hard to jailbreak and pirate.
I know someone who bought Mac from UK. Disk wasn't erased, there were hundreds of mp3s in Itunes and some apps. And we all thought it is a computer from an abosolutely crazy richman.
Poland is far from poor. Actually, these days it's quite a stretch to call it a "developing" economy.
Yes, majority of young people download infringing content from the web, except:
1) The same happens in many richer countries, like US or Spain (with percentages just a bit lower)
2) These very same people also buy content, when it makes sense.
All of my friends (who play PC games at all) use Steam. Nobody uses iTunes, because it was launched just a few months ago in Poland, so everyone is used to getting music by other means. (A lesson for Apple not to withhold products, because people will find their own way and render the "proper" channel obsolete.)
And saying "Deleting Pirate Bay, Rapidshare. Youtube and Megaupload would stop most people from accessing any cultural goods: music, films, software" is just plain insulting and retarded. I guess in your book there's been no culture to speak of in Poland before broadband Internet? ;)
Unlike India etc, average Pole has enough money for good PC or notebook and good internet connection, but not yet enough to pay for software.
Nobody uses Steam or Itunes, paying for software is just laughable. Except for businesses - they must be legal.