Software suffers from the same problem as music. All the locks and tricks in the book will only keep the honest people honest, and while better locks will keep the less motivated theifs from trying to steal something, there's nothing that can be done to keep the motivated people with nothing but time to kill from cracking just about anything. I think WB has taken a step forward in terms of the steps it takes to thwart the theives but it won't stop everyone.
As for the comment about software makers only making money off of Enterprise customers, that may be true to an extent, but what most software vendors are trying to do is start making money off of support. So, if someone doesn't buy the product that can't get support for it.
Oh and Cyber, I do agree with you and I think SD would be doing itself a favor if it let a few of the mods spend some time sending cease and desist orders to the hosting companies that are hosting the sites that offer these files. Again, it won't end the problem but it might make finding the actual fines more difficult. It might also help if SD added some credentials to the downloads from their servers.. As it is most of the files are available from various download servers that can be gotten to if you just know the URL.