I could sit here and spin up a thousand hypothetical but plausible scenarios that could push the judgment from "burn the seller at the stake" to "burn the buyer at the stake" and everything in between and around. I would be stupid to do so. It's best to judge with the information you have available and no more. And if the result of that is you can't make a final judgment, that's your final judgment pending getting more information.

There's a disease that is predominantly (albeit not exclusively) North American of a) assuming there's only two sides, and b) picking one to be the villain. Sometimes things are vague and unknowable, and sometimes (most times!) things are not straightforward black-and-white moral puzzles.