I also liked the letter ticking off some of Sternberg’s violations of policy and concluding, “If I were to do this in any other museum I’d be run out of that town.” Apparently this guy was really handled with kid gloves.
I believe that was the opinion of the unnamed individual who wanted Sternberg removed. I assume he was the person referred to in the email traffic who was the candidate for receiving the suggested "Shut up" action.