Should I buy this?
It has lost a lot of value recently.
My best explanation is that lots of people were hedging into decred just in case the UAHF turned into a complete shitfight, and people decided en masse that "governance" is actually a really important thing to get right.
It strikes me as a group of people who are committed to get Blockchain right. Whether that means huge gains is anyone's guess, but I would imagine that it will be an attractive alternative to bitcoin to crypto purists who think principles like decrentralisation are critical to the blockchain project.
Buy if you care about good governance. Don't expect the moon, but it will be resilient when the bubble bursts.