Guy:
For me, way-way back in my early adulthood, these letters were the very first spanking literature that I discovered. That makes these very evocative for me.
Part of the experience was figuring out over a period of months that these were mostly fantasy. That realization was important, because now I finally knew that I wasn't alone in the world.
I'm figuring that it was spankophile types like us that kept "MR." magazine in business into the early 1980s--AFAIC other than the amount of supposed 'correspondence' RE spanking in its readers' letters section, there was nothing special about that publication.
There was enough general sex-oriented material in its articles and pictures so that "MR." could pass as a mainstream 'girlie' magazine and not be labeled "deviant" or "fetishistic," but i'm guessing that those purported readers' letters accounted for a considerable percentage of the magazine's sales.
(PLAYBOY and PENTHOUSE were/are more sophisticated overall with much better photographs of nude young women, while OUI magazine was somewhat kinkier but similar to them in the late '70s.)
Spankophiles who are only in their twenties and thirties agewise, they've had it pretty easy compared to the 'older generation' in readily finding spanking-oriented material--it was an adventure back in the pre-internet days... --C.K.