I admire your optimism and determination. It's not my intention to convince you not to try. Even if you don't succeed, and it's not impossible that you could succeed, you will certainly get a lot out of it. So take my negativity as a challenge, and prove me wrong :).
Thanks for the encouragement! Would you mind offering your opinion on a few things though?
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.