Great comment!! The first time ever that I saved a clip from slashdot comments!
The funny thing is that just as languages have always changed, people commenting on other people's language has probably also been around for
a long time. Actually, there is a theory that says that one of the original functions of language was to distinguish in-group from out-group. So, the fact that
we use language today to distinguish grammar nazis from regular folks, or valley girls from east-coast girls, has also been around forever, and could be one of the reasons we speak.