The below methods cannot alter or fix the problems that require
a configuration file.
Example: have 'rm -fr .' do a depth first removal and not
pre-inspect any argument before its children.
Whether or not to expand tabs in output so that output to
a terminal that doesn't have tabstops every 8 characters will
line up.
I could go on, but those cannot be handled with a simple alias.
The common and recommended way to add default command-line arguments
is to use aliases (e.g. "alias rm='rm -i'").
If used in $HOME/.profile - it will affect your interactive use.
If used in /etc/profile (or similar) - it will affect all users in your
system.
That method already works in almost every Unix system - without adding
additional code and complexities of a global configuration file.
Given the above, I'm closing this as "wontfix".
Discussion can continue by replying to this thread.