In a 2010 study, only 60% of incoming US college freshmen could be considered literate. This was a fairly small study, limited to a particular region, so may very well not generalize to the nation as a whole, but it is something to think about.
If only slightly more than half of college freshmen can read, what might be the literacy rate in the nation as a whole?
That scares the heck out of me. What bothers me more, though, is the rabid anti-intellectualism with which people defend their "right" to fail to use language correctly.
Even here, we've had members become quite aggressive when their posts were corrected for capitalization and/or spelling, and we seem to be a smarter, more reasonable and polite group than most.
Anyway, yes. We do need some standards for spelling, capitalization and grammar. If people aren't learning it in the public schools, and they aren't learning it in college, maybe they can learn it on a pipe-smoking forum.