I sent Chris a PM immediately. And you are spot on about the photos. That was what I ran into when I started to lookAlmost always newly registered members responding to WTB ads.
Googling their email addresses typically turns up results with similar complaints from other boards. Also, reverse image searching the pictures they send you will typically pull results; they are just taking images from google.
I have encountered it here a couple times... nothing against this board... in fact it's a compliment to the success of the classifieds section. Report these jokers to a mod (screenshot the PMs) and they will get kicked.