My poop boards have a 2 inch lip around it and I fill the inside with playsand. All the poop lands in the sand under the roost on the "poop shelf" and is really quick to clean up in the morning with a kitty litter scoop. It's been six months now and I haven't had to replace any sand yet.I have poop boards in one of my coops it does help keep the coop clean as a whole but the poop boards need to get changed often.
As for bugs I have been battling mites this year it is no fun, some of my poor chickens look so mangy. Ive been working on it.
As for lice and mites ... I read in a different thread here that wood ash works wonders. Just dust the birds with the wood ash. If infested then also rub some NuStock on their legs and base of feathers.
https://www.backyardchickens.com/t/...-horrors-anyone-want-to-follow-their-progress