Well, with Chrome, it half works. You can write and post with it, but all the formatting buttons and options do not work (at least, they didn't for me), and it "auto-corrects" your post.
Actually, my Firefox does the same... none of the formatting options work, so I'm thinking Chrome has a slight better handling on passing the text than Firefox and Internet Explorer do. Most likely due to the fact that for the WYSIWYG, it's not a TEXTAREA, but a DIV, and when the FORM tries to POST, the different browsers appear to handle it differently, which means for some it works, for others it doesn't, which should be the case regardless of browser settings or accounts here.