This confuses me.
Language isn't static. We create and shape language everyday. Words are words because we use them. I get in this forum that many people are not just college educated, but have a degree in English of some sort. This makes me wonder if people sometimes lose track of what happening in the real world.
Comments like I return a book or stop reading if there are x amount of mistakes confuse me. I get it for writers/editors mistakes must drive you nuts, but in general I don't care what editors think. Most readers aren't editors. People want to read something that makes sense to them. I don't care if you write okay or ok or Ok. OK looks like you are shouting so I hope that's your intent if not most of your readers are now confused. Keeping up with current language norms would seem to be more important than making sure you have everything correct according to the current manual that only editor and English majors have read.
It's true that language evolves and that what is considered correct today may be incorrect in the future and vice versa. Also, in English there is no one authority that dictates usage. If you look around enough, you will find that even grammar texts differ on some usage points. Dictionaries also differ on spelling occasionally. Sigh!
That said, I'm curious what the source is for the feeling that okay is more proper than OK. As I pointed out above, CMOS in its latest iteration doesn't take a position one way or the other, but Webster's Unabridged shows a preference for OK. At the other end of the spectrum in terms of dependability, Wikipedia also shows a preference for OK (with okay listed as an acceptable variant spelling). Dictionary.com (based on Random House Unabridged, defines okay as meaning OK and then launches a much more extensive definition for OK on the same page. A usage note gives only a slight preference to okay: "Few Americanisms have been more successful than ok, which survived the political campaign of 1840 that fostered it, quickly lost its political significance, and went on to develop use as a verb, adverb, noun, and interjection. The expression was well known in England by the 1880s. Today ok has achieved worldwide recognition and use. It occurs in all but the most formal speech and writing." I wouldn't count novels in general as the most formal possible writing. Anyone have an authoritative source that gives a clearer preference to okay? What little I can find seems to be neutral or to lean the other way.
(As a reader, I'm not concerned with minor usage points like that and wouldn't hold either usage against an author. I'm just curious what sources people use in forming their ideas of correctness.)