Are you a strict grammarian?

[Torie]

I try to be, but sometimes F up myself. I find that I "clean up" my posts via the "modify" button an uncomfortably high percentage of the time.

[Torie]

BRTD is literally the worst. I could care less what he thinks.

So you do care!

(BTW, as irksome as it to me when people use "could care less" when they mean they don't care at all about something, even worse is when people ironically use the phrase to irk people like me.  But irregardless, I know my language use likely sets off some people's peeves as well.)

Yes, your use of that "word" is certainly irritating.  And there is nothing wrong with "couldn't care less" by the way. Cheers.