Is it illegal to put a student ID card on the public comments of calligraphy institutions?

It is not illegal to put the student ID card on the public comments of calligraphy institutions. Public comments mainly provide consumers with the services and related information of the merchants. The purpose of displaying student ID cards is actually to provide consumers with more valuable information and help them evaluate the calligraphy institutions under consideration. As long as the certificates displayed by calligraphy institutions are true and legal, the publicity and advertisements involved are true, accurate and not misleading, and there is no violation of the provisions of public comment. It is not illegal to show a student ID card, but it depends on the authenticity and legality of the certificate itself. Therefore, it is not illegal to put the student ID card on the public comments of calligraphy institutions.