BuddyPress: Members-Only Community Pages
Sends logged-out visitors who open BuddyPress pages (members, profiles, activity, groups) to the login screen, so the community is visible to members only.
Snippet Library
Users snippets for WordPress
Snippets for user accounts, roles and profiles: extra profile fields, new columns in the users list, last-login tracking and tighter control of what each role can do. Handy for membership sites, client sites and teams with many authors.
BuddyPress: Only Friends Can Send Private Messages
Limits BuddyPress private messages so members can only message people who have accepted their friend request, which cuts down unwanted messages.
Personal Message Box for Individual Members
Lets administrators write a private note on any user's profile that only that user sees, through a [wpide_my_message] shortcode and on their own dashboard.
Private Admin Notes on User Profiles
Adds a notes box to user profiles that only administrators can see and edit, for things like support history or account details.
bbPress: Forums for Logged-In Members Only
Sends logged-out visitors who open any forum, topic or forum profile to the login screen, making the whole bbPress forum private.