While surfing for info on Landmark Forum Child Abuse, I discovered a message board, link below, where an Attorney from Seattle is interested in establishing a class action against LE because an existing client has a psychotic episode afteer attending the forum.
He is requesting interest from people who believe thay have been affected by LE. The post is old, Sept 2002, but he has left his contact details. He is interested in hearing from people in USA as well as from other countries.
Scroll down to mid way down the discussion thread.