My kitties, especially Fiona, likes to paw outside the box instead of actually covering the poo. This might be a thing, she could then only scratch the inside of the box. Hmmm. I would also cut a hole or holes in the top for ventilation. Some cats hate enclosed boxes but maybe see through would help that. Of course still scoop every day or more.
The only purpose this contraption seems to serve is trap rising stink .....A bad idea....I run the bathroom exhaust fan when I am not there....I clean the litter with a sifter system every time I notice Kiti6&Laila9 have used the litter as any caregiver would change diapers and clean infants ....the reasons why cats dig and cover is to hide the smell....when cats see how well trained humans attend to the litter THAT'S WHEN CATS turn on the affectionate charm....even with a belly full of food cats love us caring 2 legs