Chris Holman reported he could delete forums.
Forum admin permissions (tiki_p_admin_forum) were given to all registered users. I have not set it to:
Anonymous: tiki_p_forum_read(x)
Registered: tiki_p_forums_report(x) tiki_p_forum_attach(x) tiki_p_forum_post(x) tiki_p_forum_post_topic(x) tiki_p_forum_vote(x)
Dev Team tiki_p_admin_forum(x)
Admins: tiki_p_forum_autoapp(x)
Unchanged: Permissions are cumulative for these 4 groups. Admins include Dev Team which includes Registered which includes Anonymous.