BuddyPress.org

The new bp-default is already a MAJOR change in a good way since the old BuddyPress theme btw. The old theme was littered with empty clearing div’s.

Agreed out of the box the new default theme is a vast improvement and there are pages that validate fully – that’s not to say all the markup is as good as it could be with the odd div used to present data when a div carries no semantic value and shouldn’t really ever wrap plain text, many of the divs used that way perhaps ought to be paragraph tags or LI elements, and there are still the odd clearing div used (just happened across one on blog listing page)