Currently the edit forms and other things are accessed by a URL similar to the one for viewing pages, but with an added query string: ..wiki.phtml?title=Name&action=edit vs. ..wiki.phtml?title=Name.
It might be easier to play nice with bots and indexers if we change the non-viewing URLs to something entirely different, say ..edit.phtml?title=Name, ..special.phtml?title=Name, etc. This might make it easier to use robots.txt to exclude things, for example, since some bots apparently don't listen to meta tags the way they should.
On the other hand, it would break whatever tools already depend on the old URLs, like Magnus's offline reader, etc. Do the techies think this might be worth the hassle?