Anyone who does not know the answer to that question, well, their ignorance is monumental. Your response also indicates a woeful lack of reading prowess (or an intentional misreading, neither of which speaks well of you). When one writes of what "should" be done, he is not necessarily (and almost never) citing a rule. He is almost always stating a preference.
Again you demonstrate why rational people should not lend any credence to anything you write. Moving on.
On edit: I notice that I used the word "should" in the next to last sentence. For the reading-impaired, I should point out that the word does not indicate that a rule exists. Dang, I did it again.
