What should I consider when managing usergroups for subcommunities?

Question	What should I consider when managing usergroups for subcommunities?
Answer	Rank ladders: Use the default rank ladder for main site ranks and secondary usergroups for subcommunity memberships. New member status: Set default usergroups for new members to grant them initial access while allowing removal if necessary. Leadership: Assign leaders to usergroups to allow members to manage subcommunities. Clubs: Consider using Clubs for member-driven subcommunities with their own forums.