In my last publication, I made rather a big fuss about being able to use WYSIWYG in a wiki, or at least, that I thought it a vital requirement to drive usage of a wiki (something to that effect anyway). So I went ahead and tried one of the documented solutions for adding WYSIWYG capability to MediaWiki.
If it were up to me, I would require all documentation on a project to be done in a wiki. I mean everything. For example: documenting business processes, problems and their solutions, people’s contact details, system details, project issues, project processes, ideas, proposed ways of doing things, FAQs, etc. What stops you from putting meeting minutes into a wiki? I guess nothing, provided you can implement some form of access control, which fortunately, good wikis provide.