The effect of the vote will be that all plants, fungi and algae names that contain the word caffra, which originates in insults made against Black people, will be replaced by the word affra to denote their African origins. More than 200 species will be affected, including the coast coral tree, which, from 2026, will be known as Erythrina affra instead of Erythrina caffra.
In South Africa, we're vaguely aware of the n-word and its meaning in American culture, but the k-word (after which this plant was named) is highly offensive.
I really don't know how to answer this question. It has a major history of dehumanising people and is closely linked to apartheid. Black South Africans haven't reclaimed the word like black Americans have - they'd mostly rather just see its use disappear altogether.