We have JSON-LD setup on our SC site, and Google is complaining that our Reviews are missing the "author" field. We import our reviews from a third party review service, and we want the reviews to be anonymous. The product reviews custom record has a "Writer" field, but according to the help, this is populated with the Customer ID of the shopper, right now, all of our reviews have no data in this field. If I create a customer (individual or company?) called "Anonymous" and populate that customer ID in every review record, would that do what I need? I'm not sure how the customer ID in the writer field of the review record corresponds to how the JSON-LD review author markup is generated.