[Plugin: BuddyPress] Theming BuddyPress

bbPress ships with a theme, which is called upon to supply templates when relevant templates aren’t available in the installed/active WP theme. Additionally, a variety of shortcodes are available.

Why doesn’t BuddyPress do the same instead of requiring painful theme customizations?

http://ww.wp.xz.cn/extend/plugins/buddypress/