I would turn this around- what core part of Less Wrong is actually novel? The sequences seem to be popularizations of various people's work. The only thing unique to the site seems to be the eccentricity of its choice in topics/examples (most cog sci people probably don't think many worlds quantum mechanics is pedagogically useful for teaching rationality).

There also appears to be an unspoken contempt for creating novel work. Lots of conjecture that such-and-such behavior may be signaling, and such-and-such belief is a result of such-and-such bias, with little discussion of how to formalize and test the idea.