It probably doesn't work. It's like lots of Windows batch file questions get answered with "install cygwin and then use this arcane invocation". Given that I'm one of the few who who can competently answer such questions without installing anything else (with a slightly more arcane invocation) I often find that a little sad. I almost thought about going around answering Unix shell scripting questions with PowerShell answers, but Pash isn't that far yet.
True. But many questions that come up, that were already answered. And for years jQuery was fancy and most answers to JS questions are that way. Only recently people start to use pure vanilla JS 5. Thankfully the community adds new pure JS answers to old questions... though you have to scroll down to the bottom of the page.