Like most naturalist philosophers, I don't see a sharp line between what philosophers and scientists should be doing. Philosophers are basically just the most theoretical kind of scientists. And when philosophers start using methods that aren't condoned by math or science, they tend toward crank-ness.
This post is a bit of shameless self-promotion, but also a pointer to an example of Yudkowskian philosophy at work that LWers may enjoy, this time concerning philosophical theories of desire.
Episode 14 of my podcast with Alonzo Fyfe, Morality in the Real World, begins to dissolve some common philosophical debates about the nature of desire by replacing the symbol with the substance, etc. Transcript and links here, mp3 here. The episode can also probably serve as a big hint of where I'm going with my metaethics sequence.
Warning: Alonzo and I are not voice actors, and my sound engineering cannot compare to that of Radiolab.