There are many forum members that have already sorted those two issues (no extreme weight or PUFA in tissues) yet have difficulty maintaining a good state without thyroid. It doesn't seem an issue of being supressed for too long and making up for it now, it appears that it's not working or they're after the extra kick. What do you think is going on in general? When you supplement hormones and manipulate other aspects, aren't you correcting an artificial state?
So, maybe these people are still in an environment with a great deal of stress, as Ray said in his last quote. I personally also use thyroid, but these days it is relatively rarely (maybe twice a week), only as needed. Maybe I should have clarified to say that I think it is possible to maintain good health with occasional thyroid, as opposed to every day use.