Comma police
Okay, this is becoming a trend, and it's got to stop.
Everywhere I've looked in the past week or so, mostly in nonfiction published by various respected and established publications, I've come across sentences punctuated like this:
* According to congressperson, James Gorgonzola, dogs are mammals.
Or:
* I asked prolific author, Jane Zloty, for her opinion.
Or:
* Tennis superstar, Pat Ziffzaff, has now won five thousand straight games.
(The asterisks here, loosely borrowed from a similar use in linguistics, indicate that I consider these constructions to be incorrect.)
Such constructions should be governed by the rule regarding restrictive appositives. The general idea is that if there are a bunch of members of the group that you're referring to, and you want to single out one of them by name, you're restricting the class; a restrictive phrase of this sort should not be set off by commas. (If you have access to the 14th edition of the Chicago Manual of Style and want more info, see section 5.49 to 5.50.)
The confusion probably stems from two sources:
- If there's only one member of the class you're talking about, then the name is nonrestrictive; the name is just another way to refer to what you've already described. In that case, you do set the name off with commas. "According to the senior Senator from Mississippi, James Gorgonzola, dogs are mammals." "I asked the world's most prolific author, Jane Zloty, for her opinion." "The record-holder for longest tennis winning streak, Pat Ziffzaff, has now won five thousand straight games."
- If you give the name first, and then a descriptive phrase, the phrase is almost always phrased in such a way that you use commas. "According to James Gorgonzola, a congressperson, dogs are mammals." "I asked Jane Zloty, a prolific author, for her opinion." "Pat Ziffzaff, tennis superstar, has now won five thousand straight games." (See Chicago section 5.66.)
But regardless of where it comes from, the punctuation used in the first examples up above is (to quote Zed) wrong Wrong WRONG!
Comma police officer Jed Hartman strongly recommends that writers stop using commas that way.
(By the way, Hartman's Law of Prescriptivist Retaliation states that any article or statement about correct grammar, punctuation, or spelling is bound to contain at least one eror. When you point out the errors I've made here, please don't be too smug about it.)