I have been wanting to get a modern WW1 sin for ages, since Rowan's Flying Corps, but that online DRM kept me away from ROF. If it is removed, I will buy it happily and send them a proof of purchase so they can know both I got it legally, and that I didn't get it before because of that system.
In any case, would be interesting to see once the DRM is removed, how much the sales do increase