I find that Less Wrong is a conflation of about six topics:

• Singularitarianism (e.g. discussion of SIAI, world-saving)
• Topics in AI (e.g. decision theory, machine learning)
• Topics in philosophy (e.g. metaethics, anthropic principle)
• Epistemic rationality (e.g. dissolving questions, training mental skills, cognitive biases)
• Applied rationality (e.g. how to avoid akrasia, how to acquire skills efficiently)
• Rationality community (e.g. meetups, exchanging knowledge)

These don't all seem to fit together entirely comfortably. Ideally, I'd split these into three more-coherent sections (singularitarianism and AI, philosophy and epistemic rationality, and applied rationality and community), each of which I think could probably be more effective as their own space.