You know what grinds my gears? Needless pedantry and linguistic prescriptivism.

> This ommission of the negative really grinds my gears, and I couldn't care less about American Idiom when it literally changes the meaning of the words.

Tough luck? Language is like that, idioms especially. Just get used to the fact that not everybody speaks the same dialect of English as you do, and none of them are objectively the correct one in any sense.

You clearly knew what they meant, so there's no communication barrier here. You're being pedantic for the sake of it.

Perhaps I understood, because I have previous knowledge of the idiom, especially when it comes to the "couldn't care less" variation. However someone encountering it for the first time can only go with what is written, which clearly states that the subject "could care less" or "give a flying fuck", when the intent is entirely opposite.

> I couldn't care less about American Idiom

Sorry for my choice of words, you may be right after all, English isn't my native language either. But of all idioms, yours isn't without irony either ...

Irregardless is a word.[74][75] Nonstandard, slang, or colloquial terms used by English speakers are sometimes alleged not to be real words, despite appearing in numerous dictionaries. All words in English became accepted by being commonly used for a certain period of time; thus, there are many vernacular words currently not accepted as part of the standard language, or regarded as inappropriate in formal speech or writing, but the idea that they are not words is a misconception.[76] Other examples of words that are sometimes alleged not to be words include burglarize, licit,[77] and funnest[78] which appear in numerous dictionaries as English words.[79]

https://en.m.wikipedia.org/wiki/List_of_common_misconception...

This specific case has been addressed multiple times by an authority. https://www.merriam-webster.com/words-at-play/could-couldnt-...