I have noticed that when creating a WIKI I do a lot of copy and pasteing from Word into the WYSIWYG Editor. However there is not function with in the editor to strip off styles. This creates a lot of funky looking text. You are able to go into the HTML and manually strip off all the unnessarry tags, but man is this time consuming.
It really makes me want to skip the whole WIKI thing. Plus I am not sure how many people here are up on there coding.
I suggest putting in a "Style Stripper & Copy and Paste From Word" Button/Function with in the editor.
There is an example of an Editor with this function HERE