To me tmux, like a lot of tools, suffers from bad defaults that makes it less enjoyable to use. One example is not being able to scroll with a mouse. I usually find someone's tmux.conf online and use it, but always run into strange problems that I don't have the energy figuring out. My current conf suffers from the navigation bar going completely black when I try to rename a pane (can't see what i'm typing).
Really wish more tools took care into making solid defaults and not assuming all users are like the ones on their mailing lists.
I guess bad defaults have been chosen to maintain stability for previous users. IMHO, man pages should contain a .tmux.conf that demonstrate the "best" usage(s) of the tool.
IMHO man is the most important command in unix and "man man" the first step in learning unix.
Speaking of... https://github.com/tldr-pages/tldr/blob/master/pages/common/...