That ad with the single Guzzi among all those early Jap bikes had been on Cincinatti c/l in some manner for at least 1-2 months. I've almost linked the ad here before in case someone might have interest in the Guzzi. This new ad is the first time I've seen it with the Guzzi pictured.
Maybe the older ad(s) needed pics because nothing sold, but looks like the same amount of bikes are still available and for sale. If all were legit, you would think at least one of the bikes would have sold by now....