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?
I think there would be more contributions. For instance, StarSlateCodex seems to get more engagement by discussing the Taboo topics. Its widely believed that many LWers left here but visit those types of sites. Could LW fully explore rationality without the those topics? Probably - but it would be dry and boring.
I think that the reddit code base (LW's) would be a better platform for the rationality community then a bunch of random unconnected websites. I had proposed an egalitarian software solution which I think would allow the Taboo topics to be discussed without forcing them on anyone.
Its playing with fire. Scott/Yvain felt it necessary to encourage the departure of most of his NRx posters. My anecdata suggests that quite low numbers of contrarians (~3%) can get a blog labelled Nasty Racist Sexist Hangout.