Been to a few hoarder's homes by now. It looks like this in the main living areas. They always say, with perfect sincerity, " excuse the mess, getting ready for a garage sale" or "my fill in the blank has been bothering me lately so I can't tidy up too well..."
My favorite is the wall they put up when finishing the basement...about 18 inches in front of the blower door. I only found one so far that would be physically impossible to remove the blower housing with out removing part of the wall - and I just know it'll be my on-call when the damn blower locks up.