People aren't used to applying dry topics like economics onto intimate activities like dating.
There have been a slew of pop-economics books over the past decade or so that apply economic concepts to just about anything but pecuniary subjects. Insofar as people without an academic background in the subject apply economic theory to anything, I'd say this is simply untrue.
Certainly, I think that people in my social group are more likely to have read Freakonomics than any more traditional economics book.
The last thread didn't fare too badly, I think; let's make it a monthly tradition. (Me, I'm more interested in thinking about real-world policies or philosophies, actual and possible, rather than AI design or physics, and I suspect that many fine, non-mind-killed folks reading LW also are - but might be ashamed to admit it!)
Quoth OrphanWilde:
Let's try to stick to those rules - and maybe make some more if sorely needed.
Oh, and I think that the "Personal is Political" stuff like gender relations, etc also belongs here.