many people jokingly say that their work stops if StackOverflow is down. Surprisingly I barely use SO, I refer to docs and Github source code and issues much more often.
IMO "use the documentation" is not enough, many times you have much more complex question or bugs/problems where if lucky other individuals hit them before you and were kind enough to share their findings. I upgraded my Ubuntu version and now some people decided that is safer and smarter to move the /tmp in apache to some other place but at the same time hide it from me, I am not sure what man page search query for "my file is not in /tmp but the system is telling me is there" will give you the results.