The biggest mistake DECRED made was the high inflation. (You should have started the supply at 15 million & the same current inflation settings as BTC.) Everything else about it, made it a coin that was similar too but superior to BTC.

With 180% year 1 inflation, You need $1 million (2000 BTC) worth of new buying demand over the next 2 months to sustain a DECRED price of $2 per coin. I can't tell you how absurd that is, if this coin is worth more than $0.25 each in a years time that would be a huge achievement by the devs with these settings.