Writers learning the language they speak...well, I would expect more than that. I suspect the problem is that they do write in the way that they speak...I think written language should be on a higher level.
I have a hard-on for the English language. I am from goddamned
Texas and actually use words (more or less accidentally; I would rather speak to be understood) like "whom" and "whilst". But I don't know about any particular sanctity of the written language - look at
Gravity's Rainbow or
The Catcher in the Rye, just for example; they completely flaunted technical rules to express a particular and unique voice.
The problem is more with - and this is just off the top of my head:
(1) People with a lazy ear for dialect that only reproduce the most flagrant and incorrect variations in their writing, as though one or two linguistic quirks represent a particular culture or demographic.
(2) People who assume / believe that a slack attitude towards
basic fuck*ng communication and comprehension is somehow selling out or an abdication of credibility. Okay, fuck you, people - I am not going to tell your fuck*ng
posse if you use a
complete fuck*ng sentence to ask for some Internet time.
Let me recommend the awesome
Cambridge Encyclopedia of the English Language; you could get lost in that book for
days.