I think what moeffju means is that the whole page (or nearly all of it) should be editable, and we should be editing it in such a way that it is truly WYSIWYG, and not just merely a "rich box".
For example: Wordpress's editor doesn't usually look correct because the theme-stylesheet isn't included. Solving this problem either requires the template-writer cooperate, or it requires the editor be a lot smarter than current "rich box" editors.
Yes, that is an excellent idea. The user interface is much better that way. The only problem I see is communicating this to the users. What would be a good way to indicate that the user can edit the content inline? I foresee a lot of "how can I edit my site" emails ;)
For example: Wordpress's editor doesn't usually look correct because the theme-stylesheet isn't included. Solving this problem either requires the template-writer cooperate, or it requires the editor be a lot smarter than current "rich box" editors.
I've started something that takes the latter approach at http://geocar.sdf1.org/ed/test.htm
The idea was that an Apache filter would insert an enable_editor() if the user had a logged-in cookie, but the above link just activates it in onload.