I don't either. What does it mean?
From first search:
The n-word pronounced with the final ‘r’ sound, as opposed to a softer pronunciation that often omits this sound
Over the decades, the n-word has evolved, with the softer version being reclaimed by some within the Black community as a term of endearment or camaraderie. However, the “hard R” variation remains a symbol of hate and discrimination.
Why try and use that context for judgment when a more appropriate one exists?
My comment explains what hard-R means from the point of view of someone outside the states, and gives enough context for a non-native English speaker to understand the term. The subtleties of English are hard even for those with English as a mother tongue.
From the Wikipedia article:
Among certain speakers, like some in the northeastern coastal and southern United States,[6][2] rhoticity is a sociolinguistic variable: postvocalic /r/ is deleted depending on an array of social factors,[7] such as being more correlated in the 21st century with lower socioeconomic status, greater age, particular ethnic identities, and informal speaking contexts.https://simple.wikipedia.org/wiki/Nigger
> However, in the late 20th century, the word was seen as a hurtful racial slur in English. It was called hate speech. "Nigger" was seen as very offensive to say or hear which caused many to not use the word at all. They instead called the word "The N-Word". It is said with a "hard R", because the word ends in 'er' instead of 'a', as in the word "nigga".
this very much illustrates that blacklisting (sic) words leads to nothing but confusion, not mutual understanding to each other's speech, let alone understanding each other's position. is it what social justice warriors want to bring about general compassionating with?