Why not have everyone post to a single queue.
The point of the current setup is that it doesn't need editors - what would be editorial decisions are crowd-sourced to upvoting and downvoting.
Incidentally, "have everyone post to a single queue" and "editorial decisions are crowd-sourced" aren't mutually exclusive. Kuro5hin combines the two: authors submit to a queue where other users vote submissions up or down. Submissions appear on the front page, get posted to a less prominent subsection, or get dumped, depending on the votes.
(This isn't to say LW needs or should use the same system. I'm just noting a possibility.)
Yesterday, someone moved one of my posts from Main to Discussion without telling me. Again.
I encourage the site administrators to show some basic courtesy to the posters who provide the content for the site. I believe this would be a better way of doing things:
1. Have a policy on what has to happen to move a post from Main to Discussion. Who can do it? How many admins are there who can do this? State this policy in a FAQ.
2. When you move a post from Main to Discussion, make a comment on the post saying you have done so and why you have done so.