A Game Played In the URL Bar
Kilrah_il writes "Whether you think it is useful or useless, you can't ignored the sheer cool geekiness of a game played entirely in the URL bar. From the article: '... While getting lost in a three dimensional virtual world amongst increasingly thoughtful plot and character development may be an adequate pastime for some, the only new title the gaming world should be talking about is URL Hunter, an experimental keyboard-character based game played entirely in your browser's URL bar.'"
"I won't call you a punctuation nazi, because Nazis at least made an effort to know their own rules."
I have. You are wrong, and Purdue has its head up its ass. Here are just a few other references:
Grammar Book
Your Dictionary
Davis School District K-12 usage guide
Georgia Southern University Writing Center
In Wikipedia's entry on it, the mentions of using it for plurals lack citations. But the refutations of those usages do have citations.
The vast majority of evidence and authority is on my side. You lose. Try again.
I was being facetious when I wrote "try again", but even though you did, you are wrong again. Rule 6 deals with possession, not plural.
And by the way, Rule 6 also deals with compound nouns. Lowercase letters are not compound nouns.
However, looking again, I see that Rule 11 does give an example using a lower case "i", even though the rule mentions only that you do not use them with capital letters, and does not mention lowercase at all.
Even so, that is only one person. All other authorities I have found except Purdue disagree with you.