What these grammar skeptics do not realize is that their laziness may cost them their lives. Don't believe me? Just take a look at the Bible!
...they said, "All right, say 'Shibboleth.' " He said, "Sibboleth," because he could not pronounce the word correctly, they seized him and killed him at the fords of the Jordan. Forty-two thousand Ephraimites were killed at that time.
As you can see, one man's failing resulted in forty-two thousand deaths. This isn't a "God kills a kitten" scenario, this is a "God kills you, your family, your friends, their friends, that chick or hunk who was totally into you, and everyone's pets" scenario.
I estimate it will only take 2 million grammar lazy people to wipe out the earth's entire population. Please, think of the humans.