I commend your correct use of “couldn’t care less”. It’s so rare to see people get this one right these days.

really? how would/did you see others use it?

they mean it's pretty common to see the less-correct "could care less"

	▲	loloquwowndueo 36 minutes ago \| parent [-]
		I’d say entirely incorrect. It means exactly the opposite. I don’t buy the “it’s popular usage now so that makes it right” argument - it’s like saying 4 now equals 5 because more people use 4 to mean 5.