Best packaged online community software?
A friend at Boston Children’s Hospital wants to establish an online community for 400-1000 people who are either working at the hospital or are parents of children with a specific disorder. He basically wants a discussion forum, but with state-of-the-art features for moderation, spam-proofing, and karma-assignment. His main concern is quickly identifying people who are negative contributors and getting rid of them or changing their behavior. Is there a good free and open source software package that he can simply install and run? drupal.org perhaps?

