BuddyPress.org

That’s where you and me and the millions of HTML/CSS coders out there come in. Theme development is the last thing I would want the BuddyPress team wasting their time on. Their limited development resources need to be focused on functionality. As besides that… the default theme is already pretty awesome if you ask me. If you want to see an ugly default theme (that is impossible to redesign in a meaningful way)… look at Elgg. Ick.