So, back at ya - what's the problem you see in IPE In Place Editing / WYSIWYG What You See Is What You Get?
Loss of templates and CSS.
Do we really want every wiki page to look different[1]? Hardly any "regular" user of Word uses styles and rarely do "regular" web page authors use CSS. All of the styling is done inline. Ugh. THAT's the problem with WYSIWYG. I will agree that asking these people to learn wiki-text is asking a bit much - especially with complex inclusion templates, but I would MUCH rather have an extension that presents a form based on a template that allows users easier manipulation of data in the wiki than to go straight WYSIWYG or IPE.
Mark W.
[1] Sure, template overload has caused some of that but generally not within a single wiki.