There's disagreement around whether "Wuhan Flu" is a good way to name the disease. There are arguments for and against it, but which argument people prefer is strongly (entirely?) correlated with their political commitment, so tossing a phrase like that into an HN comment is political flamebait.
Edit: here is an example of the sort of low-rent, repetitive thread that such things lead to: https://news.ycombinator.com/item?id=22886052. Would you please stop feeding this here? It's the sort of thing this site is explicitly not for.