It's not an Astral-powered Prince of Death or anything like that, is it? Priestesses can't heal the undead.
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Whether he submitted the post, or whether he did not, made no difference. The Thought Police would get him just the same. He had committed— would still have committed, even if he had never set pen to paper— the essential crime that contained all others in itself. Thoughtcrime, they called it. Thoughtcrime was not a thing that could be concealed forever. http://z7.invisionfree.com/Dom3mods/index.php?
I have never got any problem with healing Tartarians from feeblemind. They get out of the affliction in few months. But I use gift of health though. Not sure if I am so lucky or GoH is just more effective than healers.