They claim that they do no harm, because they are giving the method away. But: There is a popular saying in Japan that goes: Tada yori takai mono wa nai, meaning 'Nothing is more costly than something that is given free of charge.â - Michihiro Matsumoto, The Unspoken Way.
Hmmm, I got an email saying someone replied to this thread, but the strangest thing-- I can't see any new messages!