The block reward compared to storage cost is ridiculously low. 500 DTC/block would make sense.
A balance should be met between available storage and available coins, and storage should be expensive because you are paying for a distributed, permanent, censorship resistant storage.
However something must be done to reward those who keep that storage online, I recall a thread here in the alt section that talked about proof-of-storage . Maybe the dev wants to take a look at that thread.
I'm one of early adopters (yes, I'm speaking about it decently), and I donate to many people when they do anything for Datacoin, I'll donate to 'store files forever' project (look on main site), and any other projects that will be interesting and useful.
Both wallets use the whole blockchain, of course.
Reward is not 10x or 100x less than initial - it is only <2 times lower (compare it with many other coins that decreased 10x, 100x after such great difficulty increase)