Currently, if you attempt to validate my blog, you see it yields over 100 errors. As best I can tell, nearly all of these are coming from content, not the templates.
I'm led to ask: is WordPress formatting my posts correctly? Is autop adding paragraphs and odd characters or something? I can't go into code view with every, single post.
Maybe the visual editor is the culprit, and it still sucks so bad I need to go back to disabling it until it can be improved.