My thinking is it's easier to start out with a solid foundation that I think the "sensible" and oh-my-zsh projects give you.

Take tmux-sensible for example, https://github.com/tmux-plugins/tmux-sensible. Each configuration item is explained in detail.

So the goal here is to give new users a starting point that is well documented and explained, instead of finding joeschmo's dotfiles that has "set -g default-command "reattach-to-user-namespace -l $SHELL"" with no explanation on what that does.