Well, I agree that language does and should change, but it bothers me that peoples awareness of it is diminishing. As you said, an increasing number of people exhibit poor use of language, poor spelling and limited vocabulary - but they don't seem to care. It's not that a language should be static - I'll gladly use words I make up myself to suit the moment an i doan allus spell em rite eether- but I wish more people would care more about the way they express themselves.
Present company excepted, of course. TE is packed with people who write well.