I find the WYSIWYG access to be inconsistent with Firefox.
For now, as I type this in Firefox - real time typing works, but cut and paste still does not work.
Also, memories are coming back to me as the WYSIWYG editor used in the TWIKI where I work.
I always had to fool with it to deal with spacing and line feeds / CRs by going back and forth between the HTML and normal modes.
In fact, using this MLS WYSIWYG does the same thing, even when using IE
When I used the IE browser and got the cut and paste to work and tried to correct for too much space between sentences or paragraphs the darn thing changed the font size of some of the words.
Bizarre indeed and royal pain in the ass.
-Ted