It occurs to me that the influx of non-native English speakers in social media/collaborative sites has at least something to do with this change.
It occurs to me that the influx of non-native English speakers in social media/collaborative sites has at least something to do with this change.
A red one and a blue one and a green one and a purple one.
became
A red one, a blue one, a green one and a purple one.
Notably kids seem to do the first one naturally.If commas were list separators and not just a short hand why would we end them with "and" at all.
At the end of the day it's English; we just do what feels good.
When used to form a list in spoken English, these short pauses create a kind of rote rhythm: "While you're at the store, buy milk, carrots, rice, flour, and chocolate." In reading written English, the "grocery list" effect can carry over, and I often find it undesirable, particularly for small sets that carry their own rhythm[1].
I don't have any such difficulty with logical style. If anything, it's the reverse: Preserving the original "nesting" makes it clearer how the sentence would and should be read, aloud or mentally.
[1] https://en.wikipedia.org/wiki/Life,_Liberty_and_the_pursuit_... (Note that Jefferson's original version with a nominal "Oxford comma" repeats the ampersand as well, which produces a nice alternative effect).
But exactly that's how I parse things in lists.
For example: "Life (short pause) Liberty (short pause) and the pursuit of happiness".
"A and B and C"
"A, B, C"
"A, B and C"
The Oxford style is inconsistently, doubling up command and "and" in the last item.
This is silliness. There are two styles because English grammar is a not a precisely logical formal language. Neither side is wrong; English is ambiguous.