It is extraordinarily difficult to prove that what one person did for themselves actually put Hashimoto's into total remission. And "total remission" really cannot be accepted until many years have passed. Hashimoto's is renowned as an issue that can increase and reduce until, eventually, a final barrier is crossed.
How can we know that this person would not have returned to her usual state without any of her interventions.
The "no meds" claim is rather questionable when various supplements are used. And she refers to both thyroid hormones and naltrexone.
We might be very poorly served by conventional medicine. But I am at least as sceptical of people who are psychiatric geniuses, vitamin expert, thyroid wunderkind, vaccine expert, and so on. By all means, everyone is entitled to their views, but when you push yourself as an expert... It seems unlikely anyone has enough time to be the expert she seems to be. As well as writing books, doing blogs, etc., etc.