Re: interactive-p and called-interactively-p

[Richard Stallman]

    The best way to make such a distinction clearly visible is by providing
    an argument.  Even better would be to make the argument mandatory.

A mandatory argument would make people think, each time, about which
question they want to ask.  That would be good.  But it would require
changing every existing call to either of these functions.  That's
a rather high price.