Off topic, but as a non-english native speaker the phrase "could care less" always bothers me as I read it literally to mean someone does indeed care, since they can care less. Is this one of those cases where the meaning changes through actual use like "literally" now meaning not necessarily "to be taken literally"?
It’s the idea of being descriptive instead of prescriptive. Could care less and couldn’t care less are equally correct according to the descriptivist.
It’s like when someone says that the enemy was “decimated”. The prescriptivists would say that means they lost 10%. The descriptivists would say they lost a lot.