No, but it's a huge surprise to users that copying and pasting from Word into a completely different program (say, a rich text editor in a web browser) brings all that crap along. Unless it's pasting into another Word window, it should paste the plain text. There is absolutely no situation where pasting Word's pseudo-HTML into a non-Microsoft program is the right thing to do. As you mention, Word's formatting is hideously complex, so why even bother? It isn't going to work. Just paste the text.