I am aware that BYC has strong differentiating ideas about deep litter vs. deep bedding; but it is my understanding that chicken poop is about 85% water. So there is going to be some amount of moisture with both methods, I would think.
I use deep litter and no poop boards. I don't see myself scraping poop every day. The poop from my 3 hens just mixes with the litter, dries out, and crumbles to dust. No smell, no poop scraping.