Comment on WordPress SEO Theme Developer by Mark.
1) I would allow a sitemap without pages just posts and without ads. I do not want to confuse the user to think an advert is part of the navigation. Pages are things you usually have listed somewhere in your footer so not as important on a sitemap (navigation of last resort).
3) Default favicon that could be altered easy, but a generic one might give people a reminder to make their own. Another minor thing that makes a site look more professional and trustworthy, I see very few spam sites taking the time to do this.