Indeed it seems to be fine for Dr Gundersen to insult people. Perhaps that is not 'ad hominem' because he insults people en masse, but it is clearly the same. Why on earth does Dr Gundersen think he has the right to be rude to patients? He accuses highly intelligent patient scientists who have constructed cogent critiques of being 'activists'. I pointed out that he seems to be something of an activist himself. In the UK this is known as a pot/kettle situation. If Dr Gundersen wants to debate then he might explain why he is defending a trial that fails on the most basic methodology - subjective outcomes without blinding? Or if plain English is easier then: if you tell people to say they are better they will say they are better (to avoid hassle). In clinical pharmacology this trial would be a non-starter. It is effectively alternative medicine, which Dr Gundersen is supposed to be a stalwart critic of.