Disclaimer: I'm not a voice of authority, I'm just participating in the conversation and helping a little.

Social change is a lot "fuzzier" than technical change. Not only that, it requires looking at what makes a community successful, which Less Wrong communities ARE successful, and how we can continue to use this site to generate more successful communities. That's a time commitment.

Sometimes, technical changes ARE social changes. It's not the hill I'm dying on, by any means, but I really do think that changes to the voting structure and the home page will help people participate. A section of the site that is for "rationalists talking to rationalists" rather than "rationalists talking ABOUT rationality" may also be helpful.