If you need to ask if the developers are serious about this coin, you're either not paying attention, or you are intentionally misrepresenting your intentions. Simply put, these are the questions of the typical pumper/dumper, chasing some new shinny thing of wonder...
Any input from devs themselves? Why is there no marketing? Why would i as an investor put my money into Decred? It seems you guys arent really serious about this, there is not activity in marketing whatsoever.
If you expect others to give you reasons to put money into Decred as "an investor", then you shouldn't! It's really that simple. I'd imagine that someone with such a substantial posting history would know better... On the other hand, the implication that marketing is any affirmation of the seriousness of the project, speaks volumes about your motives and expectations here. Best of luck.
Funny how u get all defensive, typicall pump and dumper? no shit im a trader we buy low sell high, u didnt give 1 valid argument why its worth it to buy decred, instead u are just making things personal. Seems decred wont go anywhere if this is how they want to continue.