In the past, we've covered the Disinformation Dozen - a group of twelve people internationally who were/are responsible for promoting a lot of mis- and disinformation, who rose to particular prominence during the peak of the Covid pandemic.
It is hard to be sure what Mike Houlding is on about in his rather opaque letter but I gather that he is lumping the use of clairvoyants, homoeopathic remedies and ADHD under some collective rubric of quackery.
The N.Z. Federation of Spiritual Healers (Inc)
A Christchurch doctor, Dr Robert Blackmore, who uses the same diagnostic method for alleged chemical poisoning as Dr Tizard, would like the method to be scientifically validated.