Of course not! As I see it though, the anti DRM movement is growing much as a reaction against the problems that DRM have caused (just look at how the indie game developers tend to clearly label their games "drm-free" and how the online music store is moving from DRM'ed music format to just plain mp3's or sometimes even wav, ogg and flac). The pirates will pirate the product in either case. I don't have any stats to support this, but in the long run, making things less problematic for your legal customers will signal that you care for them more. My choice to not use online activation in my games is based on pure respect for my players who gives me money even though they can obtain the games without doing so.