How to mark anonymous user reviews in Review Schema?

When marking anonymous user reviews in the Review Schema, it is necessary to explicitly handle author identity information through structured data fields to ensure compliance with search engine specifications. Typically, in the author object, set the name property to "Anonymous User", "Visitor", or similar generic identifiers, avoiding the inclusion of real names, email addresses, or other personal information. At the same time, the @type property should remain Person to maintain the correctness of the Schema type. If the platform has an anonymous mechanism description, additional descriptions such as "isAnonymous": "true" can be added through the additionalProperty field to enhance semantic clarity. After completing the annotation, it is recommended to use the Google Rich Results testing tool to verify the structural validity and ensure compliance with privacy regulations such as GDPR, to avoid affecting search display due to data compliance issues.