No he's not.  They're excellent questions and DRK should have transparent answers for him.  DRK is a truly incredible currency that will no doubt improve over time.  If we were a scam coin, then such questions would need to be attacked with spin.  But as we're as legit as they come, there's nothing wrong with being transparent about DRK's potential limitations and how they're going to be rectified over time.  That breeds trust within the community.