WooCommerce includes a built-in reviews system to allow customers to leave a review for the products they purchased.
It shows their comment, a rating from 1 to 5, the customer name and avatar, the review date and (if enabled) a label that indicates if the customer is a verified owner of that product.
Let’s talk more about the date. Imagine that you just moved from another platform to WooCommerce. All your reviews will probably show the current date instead of their original date. That would be annoying, so a solution would be to simply hide the review date.
Storefront is mainly an eCommerce theme, it is built by the developers of WooCommerce, for WooCommerce users.
But, it is a very customizable theme, so it can also be used in other ways. In example, I use it on this blog, without WooCommerce, and it still works perfectly. Many people use it with WooCommerce but only as a catalog, so customers are not able to buy products on the site, but just look at them.
In this last case, you probably don’t need the Cart and Checkout pages, so you remove them, but Storefront still shows a menu in the Footer area when you visit the site on a mobile device, and that menu leads you to the Cart page as well, which you removed.