I had no problem with his belief in Scientology (though it is pretty messed up) or the couch jumping but his tirades on psychiatry really got to me, mainly because he had no idea what he was talking about.
here's an excerpt from an Entertainment Weekly interview with their corrections to his statements in bold -
"Well, look at the history. Jung was an editor for the Nazi papers during World War II. [According to Aryeh Maidenbaum, the director of the New York Center for Jungian Studies, this is not true.] Look at the experimentation the Nazis did with electric shock and drugging. Look at the drug methadone. That was originally called Adolophine. It was named after Adolf Hitler... [According to the Dictionary of Drugs and Medications, among other sources, this is an urban legend.]"
if he feels it's his place to preach to and criticize others he should at least get the facts straight and until then he needs to get off his high horse.