With this application you can change the standard "follow" user behaviour. Each followed member must approve someone request. You can log it, approve, reject via ACP.
You can also manage profile privacy. You can set default mode for all profiles and allow/disallow choose it by each member with customizable options for it! It has been discused and many members wants it.
Profile privacy options:
profile is open for all
profile is open for registered users only
profile is open for (approved) followers only
profile closed for all (except admins)
It's available as setting field, so that the user can choose his preference. And other setting in ACP where default for new users can be set. Profile privacy feature was sponsored by @Sonya*.