One of the big problems with most web based WYSIWYG text editors is that standard editor interfaces don’t provide any feedback about the horrors going on underneath the surface. WYSIWYG editors are often blamed for producing crappy HTML. However I think they generally do a decent job, it’s the users that screw things up by copying and pasting from Word or other web pages and generally doing the sort of unexpected things people do. But that’s not really the user’s fault; we can’t expect most users to know HTML or care if an H3 element is illegally nested in a P element. What we can do is create a nicer user interface that gives them more feedback on what they are creating.