I've been lurking on the forum for a few days and reading all these 'warez warz' posts. One question that comes to mind, and that nobody has mentioned, is 'where did these warez sites get the English language version?'. Any cracker can go buy a legal copy, do his thing and then post it on a warez site. However, you can't buy the English language version of EU anyplace yet, right? It hasn't even been shipped out by the publishers in English-speaking countries yet, right? So, somebody either at Paradox or one of the publishers must be the leak.
Beating up the guy that downloads the pirate copy is ineffective. To take the pirate analogy, you have Blackbeard, a 'fence' ashore who sells the loot, and a consumer who knowingly buys pirate loot from the fence. The downloader is the consumer buying the loot. The fence is the operator of the warez site. The guy you want to go after is Blackbeard, the guy who stole the loot in the first place.
Normally, with warez versions of programs that have been commercially released, good luck catching Blackbeard. In this case, though, the number of potential suspects is pretty limited. Paradox should take steps. There is a lot they can do to track down the culprit.