Answer: Written communications submitted to the School District are considered public records, so you can share the anonymous comments with the school board.
However, anonymous comments are ‘non-actionable’. This is because the Superintendent doesn’t have anyone to follow up with on the comment. So senders should not expect the board to do anything about them.
To discourage anonymous public comments, it is recommended that you post a statement addressing this, such as “If you submit comments anonymously the district will not take action on the concerns. A contact must be attached for follow-up purposes”