No good would come of replying to the person who posted the ad, but you're right. The fork is obviously bent, the head tube angle looks suspiciously steep, and there's not much clearance between the front tire and the down tube for a loaded-touring Trek. Top tube and down tube are likely wrinkled behind the head tube lugs.

And the sharp creases in those dents look like stress raisers that will crack the down tube, probably sooner rather than later.