These are the hottest controversial events so far, in a chronological order:
OpenAI's deviation from its original mission (https://news.ycombinator.com/item?id=34979981).
The Altman's Saga (https://news.ycombinator.com/item?id=38309611).
The return of Altman (within a week) (https://news.ycombinator.com/item?id=38375239).
Musk vs. OpenAI (https://news.ycombinator.com/item?id=39559966).
The departure of high-profile employees (Karpathy: https://news.ycombinator.com/item?id=39365935 ,Sutskever: https://news.ycombinator.com/item?id=40361128).
"Why can’t former OpenAI employees talk?" (https://news.ycombinator.com/item?id=40393121).They think they are about to change the entire world. And a very large but of the world agrees. (I personally think it's a great tool but exaggerated)
But that created an very big power play where people don't act normal anymore and the most powerhungry people come out to play.