I'm guessing it's supposed to be like the Victory Gardens from the two World Wars - growing food in yards and parks to reduce the load on the food system (to put more commercial ag products towards the war effort). Kind of a stretched definition, but .
Edit: Never mind, there's like next to no food plants in this picture. WTF is this even supposed to be.
Despite the cringe sign, there's food in there. I see kale, sunflower, onions, tomatoes in the back, and looks like maybe squash or some other cucurbit on the left. I deem this "good actually".