Since you don't know anymore about how they operate than I do...
I'm actually very well versed in LGATS. They have been PROVEN harmful. It's not just my opinion, it's established fact.
Do some research FIRST, THEN post. It's not like there isn't forty years' wort of clinical evaluation of these seminars. There's plenty of evidence out there that shows harm - they've been referred to as "psychic murder" by experts in the field.
As far as evidence that they are helpful, there is only your ignorant "word" to take ("ignorant" BTW, before you get off topic with more DJ bashing, is not an insult, it refers to the fact that you know nothing of the subject matter - admittedly so).