No, the link I provided is proof. It is true. Iodized oil reversed cretinism in one generation.
I think that declaring Iodine "dangerous" is unethical and shows a base ignorance of a substance necessary for life. I think that your opinions have absolutely no basis in fact. That's ok, some are driven more by superstition than others.
Iodine is necessary for brain development, BTW. Did you know that?