As many people have noted, Less Wrong currently isn't receiving as much content as we would like. One way to think about expanding the content is to think about which areas of study deserve more articles written on them.
For example, I expect that sociology has a lot to say about many of our cultural assumptions. It is quite possible that 95% of it is either obvious or junk, but almost all fields have that 5% within them that could be valuable. Another area of study that might be interesting to consider is anthropology. Again this is a field that allows us to step outside of our cultural assumptions.
I don't know anything about media studies, but I imagine that they have some worthwhile things to say about how we the information that we hear is distorted.
What other fields would you like to see some discussion of on Less Wrong?
Both of these are highly politicized fields, which suggests to me that an attempt to extract value is going to run into many difficulties. Even presenting correctly extracted value is fraught--if the moral of the story is "by the way, an entire field of academia threw away the truth fifty years ago and has been a joke since then" that moral cannot be presented without being recognized as a partisan position, and thus seen as a political move.
Politics may well be unavoidable when trying to study human society. Any substantial result is going reflect well or poorly on certain public policies. Economics has its political side but that field still has plenty to offer.
Yes, that's certainly a polarizing position to take.