moot/mute bugs me in the same way
I've seen the worse, too, where folks read a word and then don't know how to say it. It's happened to me (when I was a kid) but some adults I've known couldn't pronounce words like epitome when they read it. "Ep-ihh-tome" (i.e. tome, a volume of litrature)... They had no clue what it was til I corrected them, then the light went on over their heads.
'Course the words I screwed up were mostly aviation related. I read in the books what horizon was (as in, artificial) but when I said it I got it wrong, lol. My excuse was I was probably all of 8 years old. To my defense, I was sitting in a Huey cockpit at an airshow and the pilot was asking me if I knew any of the instruments. I could point out all the major ones, at least.