"In fact no further authorization is required unless you want to install on a different computer." So this is a change from the past, as right now once we have our numbers, we can use them over and over forever. I'm not really complaining as I agree you need to address piracy and it would seem this is a fair trade off.
But it's a pain for people like me who are constantly upgrading and changing my DAW around. I have completely abandoned Melodyne because I keep forgetting to un register it when I redo my OS drive or something. It's not worth the hassle to me. So that company looses a customer because of registration policy. I actually love my Steinberg USB stick activation. New computer, no problem, just plug and play. I don't understand why so many hate USB or iLOk activation, it's a good system for both the company and the user. Of course the best for users is the good old serial number system but that's the most vulnerable to piracy.