Also, the inbox icon should update without having to page refresh (like the one on Stack Exchange).
Edit: right now you have to click it for it to update. It should update once you've seen the change. For example, if I reload this page and see the change, the inbox icon shouldn't still be red.
I think it'd be a good idea to keep a list of the ways we'd like to see LessWrong improve, sorted by popularity. Ie. email alerts for new responses.
So if you have an idea for how LessWrong could be better, post it in the comments. As people up/downvote, we'll get a sense for what the consensus opinions are.
I think there's a pretty good amount to be gained by improving LessWrong.
Note: I say "ways to improve" instead of "features" because "ways to improve" is more general.