Being taught AP style in journalism classes and the industry, I used to never use the Oxford comma (except when there would be ambiguity.) Now I almost always use the Oxford comma except when it introduces ambiguity. Overall, I’ve found that more often than not the Oxford comma is clearer, hence my shift to using it by default.
Further evidence that this is a classy bunch. Not only that the OC won, but that anyone would even raise the question.
This is one of those things that I always do so I don’t have to make a decision every time or wonder if it should do it. Locking my car is another one of those things. I always lock it, that way I don’t have to wonder whether this time I did or didn’t. It’s automatic and doesn’t require a decision.
The reason “it’s superfluous” not to use an Oxford comma is a poor one. Language intentionally adds extra information to reduce the chance of misunderstanding. For example, starting a sentence with a capital letter is superfluous, because the period “.” has already marked the end of the previous sentence. Or, adding an “s” to third-person present-tense verbs “she jumps”, when we already know there’s only one jumper.
The only legitimate reason to use (or not use) an Oxford comma is convention. You either follow a convention that uses it, or you don’t.
Ah, but I’d like to thank my father, Jesus, and my mom.
That’s the counterexample to an Oxford comma – is Jesus an item in a series or an appositive? At any rate, this comes up far less often than the cases where the Oxford comma clears up ambiguity, in my experience. (And don’t say “recast the sentence.” Suppose you are transcribing a quotation.)
In the interest of not using it (because it still looks wrong to me), I’d switch that to “I love Lady Gaga, Humpty Dumpty and my parents” or “I love my parents as well as Lady Gaga and Humpty Dumpty”.
Now that is a propositionabout prepositions up with which I shall not put. It’s applicable to latin, not to english. Not old english, middle english, nor modern english. Or so I learned in “The History of English” podcast.
Sometimes the order in which names are listed matters. I have learned this when addressing emails in large companies. Some people are offended (sometimes unconsciously) by where their names appear in the list. Your parents might be, rightly or wrongly, offended because they perceive this as you loving Lady Gaga and Humpty Dumpty more than you love them.