I think this post misses a lot of the scope and timing of the Less Wrong diaspora. A lot of us are on Tumblr now; I've made a few blog posts at the much more open group blog Carcinisation, there's a presence on Twitter, and a lot of us just have made social friendships with enough other rationalists that the urge to post for strangers has a pressure release valve in the form of discussing whatever ideas with the contents of one's living room or one's Facebook friends.

The suggestions you list amount to "ask Scott to give up his private resource for a public good, even though if what he wanted to do was post on a group blog he still has a LW handle", "somehow by magic increase readership of the EA forum", and "restructure LW to entice the old guard back, even though past attempts have disintegrated into bikeshedding and a low level of technical assistance from the people behind the website's actual specs". These aren't really "solutions".