Why do you require me to make short and long product descriptions?
We're just that evil. No, kidding. Descriptions matter because not every product has a photo, some pictures may not be entirely clear to your visitors, or some error may simply omit the picture on a customer's device. Furthermore, it gives you a chance to entice your potential customers and set yourself apart from your competitors with more than just pricing and looks.
Read more about optimizing your online pop-up shop here.