It also was poorly researched and seems to consist of setting up an indefensible straw-man and then beating the stuffing out of him based on the unsubstantiated personal fears of the author.
I have been to that site before. I offered some common sense, and rebutted some of their wild assertions, but they chose never to post my comment.
They just seem to post the self serving and self congratulatory stuff along with questions and answers, so long as your question does not actually question their premise or what they construe to be supporting citations.
They are right and wrong, mostly wrong. Indubitably some people will ultimately screw up their body chemistry while monkeying around with Iodine and other supplements, however they are scaremongering and seem to be discouraging people from addressing what I believe is a widespread and well documented epidemic of Iodine deficiency. Just because we are not all still susceptible to dying of goiter does not mean our bodies are getting the optimal amount of this essential element, any more than one should use scurvy prevention to determine the optimum level of vitamin C. They push their opinion and ridicule opposing opinions in a way most unscientific.