I'll admit, I am a grammar nazi, but there are reasons. Take this:

"I had to help my uncle Jack off a horse..."
and
"I had to help my uncle jack off a horse..."

Obviously, there is a HUGE difference between the two. In CF particularly, words like Herald and Empire could have entirely different meanings depending on the capitalization.

As far as punctuation, there is a difference between:

"I want to eat Jack"
and
"I want to eat, Jack" (sorry for the poor example - it's late)

One of my favorite is the difference between:

"A woman, without her man, is nothing."
and
"A woman: without her, man is nothing."

Hyphens are equally important. It's easier to read re-enter than reenter. A man-eating bacteria is a nasty germ, but a man eating bacteria needs to clean out his fridge more often.

Of course, I'm the type of person who yells at the "10 items or less" sign, but still. Proper grammar and punctuation is, believe it or not, important.

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"In those days spirits were brave, the stakes were high, men were real men, women were real women, and small furry creatures from Alpha Centauri were real small furry creatures from Alpha Centauri."