Why does Python have other options if no one is using them? Are these other options cruft in the language design, the compiler, or just reasonable support for features intended for other, perhaps infrequent, usage?

The old P5 motto TIMTOWTDI was long ago updated to TIMTOWTDIBSCINABTE and P6 adopts the latter. While P6 supports most of the options shown for P5, most folk writing P6 will just write something like:

    sub add($x, $y) { $x + $y }