The reviews are public and can be seen on your profile. Because the majority of users do not have usernames and assume the default “Anonymous” on their profile, reviews are associated with a specific MetaMask address used to log in.
You can check your profile (or a friend’s profile) for reviews even without a login.
A profile page URL should look like this:
Quick Tip If there are no reviews for a certain address this may be because the closed contracts did not have them. For example, if the buyer has not rated the seller.