Read other letters about this article
I could relate to some of this letter (the post-partum stuff) and not to some (the Kama Sutra, conquer-the-world-of-sex stuff), but here's what it made me think of: It's not bad to read this kind of work because it gives people insight into a part of life with which they might not yet (or ever) be personally familiar. And that's a big reason why we read other people's writing - we find out about stuff we might not of known before.
My own post-partum revelation, which came as a complete surprise, was that all the families I knew (mainly orthodox religious) who had a series of kids all born less than or around a year apart were created by having sex while the mother was still 'post-partum' from the last birth. And I just thought, OUCH! But then, that was my own personal reaction.