my only problem with the brainwashing theory is that the brian washing machienery would most likly been brought there by the Dharma people, so i would have thought that the others would not have used it as they would have seen it as one of the evils that was brought by them. the only station that they still used for its main purpose was the swan, where as far as we know a dharma man, Kelvin was left in there to push the button