Our optimization process sucks.
Every now and then someone makes up a thread concerning the optimization of LW, we have a nice discussion, one or the other idea gets a number of upvotes, sometimes quite a lot, but in the end, nothing happens.
What's more, it is predictable that nothing will happen, which kills the motivation to contribute.
- The LW staff (those who hold the authority to implement major changes!) needs to commit a considerable amount of time for the optimization of LW. If necessary, hire someone and make his main job LW optimization.
- The people contributing to optimization threads need to get serious feedback from the staff. It is just frustrating to feel that those who are in charge of implementing changes will not even take the time to think my arguments through.
It is just a tragic waste to put so much time and effort into LW, and about nothing into optimizing it.
In addition to the points already raised, you are completely ignoring the many changes that have resulted from LW users raising ideas and/or concerns. Briefly, off the top of my head, the front page and upper menus were redone for more intuitive use, new comments added to a previously viewed thread now have a pink border, links to the latest open thread/rationality diary were added to the sidebar, and the karma display for posts and comments now allows you to see the percent of positive votes.
Your picture of a terrible, stagnant optimization process is inaccurate.