Read other letters about this article
I thought the story was funny and actually valuable, as it discussed an issue that's kind of important to happy marriages but rarely gets such frank treatment. Happy marriages are good for kids, so the subject's not really trivial.
If it's any comfort, new mothers should know that:
A. Any new father worth his salt is also almost as exhausted (though moms have more demands made on their bodies) and also sympathetic to the low-libido problem, and
B. The problem is temporary. Eventually, kids grow older and more self-sufficent, and parents get some rest and a semblence of their old lives back.
As for those complaining about the existence of articles about parenting, I doubt anyone held a gun to their heads and forced them to read this. Many readers, including many fathers, appreciated this article, but not every single piece in Salon can possibly interest everyone.
As for those who use the Salon letters section to spew venom at children in general, those are some pitiful folks. There are many good people, with and without children, who strive to make the world better for the generations to follow them. The baby-bashers, in contrast, seem to have contempt for future generations.