Yes, this would work, but the option is not available. I can't do that, this is not sufficiently important for me. Working on decision theory is more important. (I believe you are currently not qualified to do that in the spirit of LW, and would drive the wiki in a wrong direction. It would become a non-LW wiki covering topics inspired by LW.) There are lots of people who are qualified, but they don't work on the wiki.

I tend to share your perspective. We definitely don't want a mediocre wiki that doesn't represent LW content. That would be worse than nothing. Moreover there are already other wikis around that can fill that niche. RationalWiki, perhaps?

While not ideal there it would not be a huge problem if the wiki was limited to a few pages like the sequence index and an expanded glossary. What is important is that we don't have any content there that is not taken almost directly from unambiguously upvoted posts that were promoted on the front page. If there is anything there that isn't just a summarized version of a post for the purpose of easy linking then it does not belong.