This could be a blessing. There are occasions where you (or your organization) have a lot of content in word files that would be better off in some form of collaborative/searchable repository. Wikis are very handy in these cases. However, it takes quite a lot of footwork to reformat all tables, headings etc to wiki parlance. This plugin for openOffice takes care of it.
Some people have chosen a wiki for their scientific homepage (Dario posted a tutorial in How to run an invisible wiki). I have considered it myself, although I’m more inclined to use a wordpress blog (post on how to set it up to maximize google scholar’s chance of getting your pubs coming soon!). One of the advantages of a blog over a wiki is that one can use a very good WYSIWYYG tool, windows live writer. Unfortunately only for windows. Now, this advantage is gone: one could reasonably set up and update without having to ftp files around or use crappy editors that come built-in with most wikis.