Anyone who has ever tried to build a deck or an extension to their house knows the hassle of getting the precious permit that allows you to make alterations on your property. It's no secret that there is enough red tape to make anyone want to give up. So when this person wanted a new deck, they found themselves a funny loophole instead of cutting through that red tape.
Rather than waiting for a deck permit, they just turned their boat into a deck as no permit was needed to store a boat on their private property.