It's an essential part of their digestion...but I ain't gonna be 'wiping' any of it.
I just scrape it with the mini rake and some shavings or the poop board hoe and some PDZ.
I should probably do the same, but I'm too much of a neat freak. I try to keep most of the surfaces in the coop sparkling clean. I'm sure I'll get fed up with the constant cleaning one day, and just do what you do.