It's probably some form of OCD manifesting due to all of the brainwashing. (I too am a sufferer, however I've learned to be patient with others who are not afflicted with the urge to spell correctly.) I have been referred to, in my sordid past as "The Spelling Nazi".
Scrabble just came out with a beautiful onyx deluxe edition for Christmas, which my husband considered purchasing for me. He changed his mind though because, in his words...I'd have no one to play with. (When he & my daughter play against me, their combined score might equal mine....)