I have gotten close to the line a few times. I'm not afraid to tell someone they're acting the idiot when they're acting the idiot. I also expect people to be able to think for themselves and work stuff out, rather than be led like a child.
Sadly, that's not the state of the latest generation of gamers.
As for "Git Gud", I think the biggest issue is that people simply don't (or can't), think outside their way of doing things.
Which really, is the biggest issue with a17. People are so set in the way they used to play, and aren't willing or capable of adapting to the changes that have happened.
Reminds me of a quote an old manager had on his desk. "Success is not the result of spontaneous combustion. You have to set yourself on fire."