Decred need's GUI wallet soon, so non-technical people can stake easier. Also need good marketplace with decred payments and listing in bigger exchances (like poloniex) etc. These things sure make it lot more popular.
It already exists (Paymetheus) but it's currently on testnet. So it's coming very soon. But you can get in even before that, you learn a lot by using the CLI!
It's four and a half months later. Is the GUI available yet, or is your concept of "coming very soon" over four and a half months? A coin without a GUI is useless to anyone who isn't a programmer, and most crypto users aren't programmers.