Originally Posted By: cathy
Sometimes I put boxes on top of trunk
If you drag and push the boxes, then you would surely cause scratches. But those scratches will have a tendency to follow a definite pattern in the direction of your back-and-forth push/pull motions. If the scratches are apparently random with no pattern to them, then they may signify paint breakdown. Has the trunk ever been repainted? Cheapo aftermarket paint jobs often display such "scratches" over time.
Can you post a better photo, maybe one NOT from a cellphone? Or if it must be from a cellphone, can you brace yourself securely before pressing the "shutter" button?