Exactly. Everybody has a different opinion. I just bought a good, used steer axle for a customer which had to be rebuilt. One of the king pin bearings was split and sticking half out and the king pin wobbled back and forth a half an inch. But the good new is that my supplier greased all of the fittings including the one at the bad bearing. When I called they said that it was sold as good used and if I wanted a rebuilt one I should have been more specific.
I am torn on whether we should educate internet shoppers, afterall I would say that the buyer is just as "selfish" as the seller. A good paint job really sells well but they don't notice that the left hand outer fender is missing or the control valve handles are totally misaligned or worse yet it was a foundry or paper recycling truck with "only" 2468 hours!
The ad doesn't spell it out but do you see those two long rods with with knobs sticking out of the floorboard. That means it's a standard transmission truck. Is that what you really wanted.

Because I'm familiar with the industry, as an end user, the last thing that I would buy on the internet is a used forklift truck but a lot of buyers are much better shoppers and a lot smarter than I am.