I wouldn't say Less Wrong needs a single leader, but in general good communities tend to have figures that can serve as "pillars of the community." They tend to help group cohesion and provide good content. They can also serve the role of tutor for new people or by mapping out the direction a community can/should go in.
I think we have some excellent pillars. For example, I see Yvain as a pillar, more than Eliezer.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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