CrimsonKidCK:
Agreed--the idea of the spankee having to enable his/her own punishment, to be complicit in his/her preparation to be spanked, strikes me as being quite compelling, especially if the discipline is either nonconsensual (parent/offspring, teacher/pupil, babysitter/child, governess/charge, etc.) or somewhat reluctantly consensual.
Actions such as retrieving implements, moving or positioning necessary furniture or other accessories (e.g., pillows on a bed), removing and/or adjusting clothing to expose his/her posterior, formally requesting corporal correction, assuming an optimal spanking-recipient position as instructed by the spanker, especially counting the stinging licks and even thanking one's chastiser (during and/or after the session), all are enabling behaviors by which the spankee demonstrates his/her acceptance of the ass-thrashing--or at least his/her realization that it can't be avoided.
In some spanking situations the enumerating of strokes by their recipient doesn't seem to work very effectively, however there are others (notably involving canings, heavy strappings and sorority-style paddlings) where it does make considerable sense, thus adding to the account's appeal...
I concur totally with the excellent examples you give and of course regarding situations where the enumerating of the strokes would not really work.