It's also annoying that a discussion of basic science of human sexual attraction response could be such a mind-killer merely because it's framed in terms of PUA.

Perhaps you could refocus your proposal in this direction? If you're interested in writing it, a review of the experimental work on the psychology underlying human mating behaviors, both male and female, would be more broadly useful and should be better received than giving dating advice to a subset of the community. It would be entirely in line with the Less Wrong theme of understanding human motivation as it actually is, no different to the discussion of biases and heuristics, or status and signaling. I couldn't say the same about a how-to guide for manipulating women, and I'm glad you decided not to pursue it.