How much Iodine one can take, whether with hashimoto's or not,
is also dependent on how much soy, fluoride, green tea etc. one also takes.
Other toxins and conditions also.
Include the combination of these...... and all the other stuff.
The answer for one person would be totally meaningless for another.
The effects of the above is explained in available Iodine related literature.
But you know this already, as it's been mentioned before, on this forum including info links etc.