Recently WP has added a footer to WP.com blogs
"Theme: Coraline by Automattic. Blog at WordPress.com."
I have the domain upgrade so that users don't have to see WP.com, but now I get a link to both the theme AND WP.com. It looks supremely unprofessional. I mean, I may as well get a free site at wix.com, their text is less intrusive.
It appears randomly and frankly that big black bar on my blog draws eyes to it.