Mr Moses didn't know how to respective students, parents or fellow teachers for that matter. He exhibited the sort of behavior traits of an abuser. For many years he flew under the radar. I supposed now that he has changed locations, where the law is more effective - he can't behave the way he used to in classrooms. This is my opinion, but if you truly wish to know the truth, I would suggest you look into his past teaching experience at other schools excluding Australia/New Zealand.
Mr Moses can be harsh at times but would recommend if you are looking for a teacher that will actually teach you things. His teaching inspires you to do more and better.