>>13853229Being popularly used doesn't constitute an idiom, and "Where is it from" is not an idiom.
I don't even care that much about the rule itself, it just clonked my bonkers a little that
>>13852946 is trying to be some super grammar defender and doesn't even know one of the most commonly cited "common mistakes" in the language.
Also, it's only technically correct in that people will understand it either way. The standard may be antiquated, but its a standard nonetheless. Not that I care. Like I said, it's mainly the guy I quoted whom I take issue with and/or with whom I take issue.