Some people on the french's Wikipedia think that anchors are very important features and are waiting for your answer...
I seem to remember that Lee half-implemented anchors a while back, but they're not actually enabled. If nobody else can answer more fully,
I'll
go look over the code and see what still needs to be done.
We've had a discussion about anchors on wikipedia-l, and there were serious arguments against anchors. I short: Anchors are subpages through the backdoor. If an article is so long that it really needs anchors: split it! Shorten it and put the delailed parts in their own articles.
Please read my message on wikipedia-l from july: http://www.nupedia.com/pipermail/wikipedia-l/2002-July/002791.html and all others titled "page fragment links" (and some of the "Numbered section headings" may contain discussion about this, too). http://www.nupedia.com/pipermail/wikipedia-l/2002-July/thread.html
We've hat some kind of compromise that an index function could be implemented, that shows the headlines at the beginning of an article.
If you really think anchors should be implemented please ask for it on wikipedia-l and we can go through this again.
Kurt