Why is `git pull` a "danger" if you always use `git fetch`? The configuration setting for merge.ff only affects the local machine. It doesn't generally impact

Why is `git pull` a "danger" if you always use `git fetch`? The configuration setting for merge.ff only affects the local machine. It doesn't generally impact other developers. (Unless you're doing something like setting the system gitconfig on a shared dev box, and setting merge.ff to anything other than the default would be really heavy handed in such an envronment.)