The comparison point is a kitchen sink, not a chef’s knife, and Cybertrucks rust after only a few days in the rain, and somewhere it doesn’t snow. Some stainless steels don’t even rust in salt water. They could have chosen a stainless steel that wouldn’t rust, they just didn’t. It could be a mechanical compromise, but the shell isn’t pushing mechanical requirements. I think it’s much more likely cost cutting, supplier problems, aesthetics, ineptitude, or a sleazy attempt to sell more wraps. Whatever it is, it was avoidable.