I keep a list of my legit owners. The only snag is the offsite stuff. People who buy from places such as the Market Place here need to send an email to get a new password. Yes, I have complete records of every single purchase, ever. I feel this method actually improves the value of my products and diminishes the value of wAREZ versions. As of about 5 days ago the pirate version of Poser 5 became better than the legal one. No registration and activation hassle. I know that will be an unpopular opinion, but I feel there are better ways to secure a product than torturing your paying customers. "Why do you frequent the wAREZ groups and P2P?" is the next question you'll ask. Well the real answer benefits my customers. When I see one of my products I know it's time for a password change and a batch of new enhancements for that product. Instead of punishing my customers I pamper them. It's a helluva lot harder to find a customer than to keep one. Steal my stuff: Fine! I'll make the stolen version obsolete!
I really hate wAREZ