interest and max money
Nothing wrong there:
1 billion coins
static const int64_t MAX_MONEY = 1000000000 * COIN;
100% interest
static const int64_t COIN_YEAR_REWARD = 1000 * CENT;
static const int64_t MAX_MINT_PROOF_OF_STAKE = 100 * COIN;
there is nothing more to say, besides that i hope to never have to use something you coded.