They promoted the person responsible for this https://news.ycombinator.com/item?id=28972431

Sometimes people just want to move on. No different than engineers seeking greener pastures.

https://restofworld.org/2021/github-microsoft-in-china-how-l... "As Microsoft scales back the Chinese version of LinkedIn, developers worry the code repository could be next." though I personally don't believe it to be the reason.

Do you also wonder what Amazon did to piss Bezos off?

Nothing.