I just used the most popular/known example. Personally I haven't liked GitHub since Micro$oft bought them. I'm ol' school, 25 years in the biz so M$ really really leaves a bad aftertaste in my mouth.
I'll answer your other question in the other thread.
"I'm going to be annoying you until you do something about it" It is recommending that you take some sort of action, that choice is up to you as the user. In fact, the older way of disabling the warning was called
advice.defaultBranchName
AFAIK git is still Linus Trovalds' project and one thing he is known for is "you dont fuckin break user space". That is acknowledged in the pull request https://github.com/git/git/pull/921
Linus is also a fuck-your-feelings kind of guy so deprecation_period == linus_date_of_death. No, I'm not implying Linus is racist/bigot, just that he feels that strongly about breaking user experience.
You're right...and that's why its unbelievable to me how some people are still (it has been nearly 4 years since that PR above) resistant to change this one little thing. This is just the initial branch that we're talking about here. Git doesn't care if you: