I write this post as to maybe generate a discussion on how the efforts could be concentrated and a new direction taken.

User interfaces are hard, especially if they're for the general public. Empirical testing helps.

Maybe we should start with what sort of things you personally would like to learn.

Just my opinion, but I think Eliezer's posts are what they are because he doesn't just want to say "here is how to be rational", he wants to give convincing arguments for why rationality makes sense. Not only does this show more respect for his readers' minds, it improves the odds that their understanding of rationality will resemble his. I'm hoping that there will be good ways of explaining rationality to people of average intelligence, but (at least in this community) this isn't close to being developed yet.

For the fun of it, is mathematics invented or discovered? If discovered, what sort of things are being explored? If invented, why is there so much commonality of results?

If you want to see somewhat about why PUA is such an ambiguous thing, check out Clarisse Thorn's Confessions of a Pickup Artist Chaser.