About the time my wife and I first met on line, she was troubled with a moderate malevolent presence. She is very spiritually sensitive so this happens quite a bit. Anyway, I sent the rune Ken to banish the presence, it worked; but being that it is Mimir's rune she had an encounter with him, as well. I could not help but laugh loudly as I read your post as my wife had a bit of verbal disagreement with him, as well. Her opinion of him is very much the same as the posts I have just read.
Try not to take it personally. From everything I have studied and heard, Mimir is only taking his position and his wisdom very seriously. Look at all that has happened to him and what he has achieved. No pun intended, but it is enough to give a guy a big head.