Some people need to redefine their way of thinking. I am all into protecting developer's work etc. But...
The mistake here is to believe that any software (publicly released) can be protected at all. Operating systems, and all software that is wide spread gets hacked in a mater of hours, even minutes. Forcing a protection that will bring unnecessary problems to the legit customers equals shooting yorself in the foot. More so, todays software gets hacked even before you can buy it of the shelves. In plain and simple words - it is a loosing battle in which (if you turn to the intrusive and hated DRM) we could end up with a hassle-free product for the pirates and those using pirated copies.
It is time to get real. There are many many other options for making a game more appealing to the legit buyers than pirates. Be it with quality product overall, regular patches or updates & add-ons, or via some other stuff that rocks their boat. Fortunately (via stuff shown) Oleg knows this - game map and Spitfire manual anyone?
A good example (like others stated already) is the latest StarCraft 2. Haven't played it myself but the philosophy there is what is already showing as the way forward.
Thus my money goes on the one time activation for this particular piece of software. We should know in a month time.