Guy:
Similarly, another plot that leaves me cold is where the lady is sick/sickly and seems somehow too irresponsible to properly take care of herself, so her all-knowing male partner somehow improves her medical situation by spanking her. It never seems to be a sick guy with an all-knowing disciplinarian lady.
That said, some folks must like that stuff, because it gets written and read. Further, it's nearly impossible to write that story without injecting a healthy element if love and caring. So who the hell am I so say it's bad?
Hopefully most of us here can draw a sharp (or at least useful) distinction between fantasy and reality. I think you will find that the folks here are more socially liberal that the general population, and thus are less likely to believe that males are inherently morally and intellectually superior to females. Yet the simple fact is that we spank far more females in our stories than males. Why? Because that's apparently our favorite fantasy! But our fantasies and our belief systems are two very different things.
Guy
If you read enough F/M spanking literature, you'll come across stories in which rather undisciplined and immature adult males are spanked by their much more mature and self-disciplined wives, girlfriends, other female relatives and/or woman friends in order to discourage unhealthy or high-risk behaviors--being overweight/failing to exercise, smoking, excessive drinking, reckless driving, workaholic behavior, etc.
It's very challenging to write a story featuring a fully consensual adult disciplinary spanking in which the spanker isn't shown as at least temporarily superior to the spanker in self-control, judgement, maturity, etc.--and if it's stated or implied that the corporally punitive relationship is both one-way and permanent, then IMHO it's generally difficult not to portray the disciplinarian as some way being on a higher level than his/her somewhat willing (yet often protesting) victim.
This inherent inequality issue occurs in F/M stories as well as M/F ones (and of course in F/F and M/M ones as well), so arguably there is some degree of built-in sexism and chauvinism in a narrative featuring fully consensual opposite-gender adult disciplinary spanking. There's more of the 'male superiority' to notice because there are more overall M/F stories of that type (and in general), but the principle works both ways.
(It's a tricky situation to describe a marital/romantic relationship or even opposite-gender friendship in which the partners are "otherwise equal in spite for their (one-sided) disciplinary arrangement," AFAIC it requires that the punishment administrator be incredibly mature, altruistic and self-disciplined--in fact almost a saint.)
A woman recently posted a message on a Yahoo! group that I read, one that's F/M-oriented in spanking gender orientation, postulating that any disagreements in discussions there involving opposite-gender participants should result in the female being automatically considered correct and the male apologizing to her. While a couple men submissively agreed to this, I considered that concept sexist and female chauvinist and posted back to that effect.
If that lady ever had me pants-down over her knee in RL, I'd be all "Yes, ma'am" and "Whatever you say, ma'am" while she was paddling my behind, and I'd happily kiss her hand and thank her for "disciplining me as I deserved" immediately afterward--but that's a fantasy scenario, and outside of that I believe in full gender equality.
So I agree, there's enjoyable fantasy and then there's reality... --C.K.