The post should have included an explanation of the lack of information (e.g. “the instructor posted this to a private mailing list that I subscribe to, and does not wish himself or his institution to be identified”—if this is in fact the case; otherwise, the information should have been included).
The post should have included an explanation of the lack of information (e.g. “the instructor posted this to a private mailing list that I subscribe to, and does not wish himself or his institution to be identified”—if this is in fact the case; otherwise, the information should have been included).