yeah the 'literally' one is pretty bad
I think that's BS. How else are you going to differentiate your statement from hyperbole?
Also "could care less" is just as correct as "couldn't care less". It means you could adjust your care levels downward. "How much do I care about your stupid crap? Hmmm, let me see, yes, I could care less. Significantly less. Consider my care levels adjusted to the 'less' setting."