BuddyPress.org

I agree 100% with @Travel-Junkie. Functionality should be a added via plugins however the default theme is a kitchen sink and some networks need to weed out some of the functionality built in.

“The only exception I can think of is a mobile theme.”

So true learning this the hard way with my mobile theme. The default theme just doesn’t work well on a mobile screen. It’s got too much functionality. Had to start from scratch and only pull out the content needed. Had to strip all the add actions otherwise any plugin not designed to work with it would break it.