Yes, I am not arguing the change at all for you, more for others who may be adding stuff. But I'm not sure anyone is at this point. As a coder you are probably very comfortable with Wiki syntax so if it's just you then no need to change.
What I find ironic about Wiki's though is that they're ostensibly focused on wide scale collaboration, but only people who know or are willing to learn the syntax can really collaborate. This came up recently in an interesting discussion I was having about Wikipedia and its accuracy, vulnerability to corruption. etc. One thing I have seldom heard talked about is the automatic narrowing of contributors due simply to the Wiki editing quirks and syntax itself. Most anyone can make a forum post but it is far from immediately obvious how to even add a new page on a Wiki (of course once you know it's ridiculously easy and pretty cool, but who would really guess it would be that simple and try it?). So you automatically get fewer contributors (and thus fewer experts) on Wikipedia than you could with a more WYSIWYG system. I don't see such a system being incompatible with the other benefits of Wiki's either - versioning, easy page creation, etc.
In fact there has to be a WYSIWYG Wiki out there, no? You've done some research into this, did you find anything?
- Oshyan