Yes, This section is setup for admins so that users can send message to these admins.
May you please let me know if you want any special setup, eg. User cannot send message to other users?
You can let me know your desire setup and i can assist you with that.
Please go to Dashboard > Front End PM > Settings > Recipients
and set Max Recipients to 0 (Zero) (This will restrict users to send message to other users)
and checked “Can send to admin” (This will allow users to send message to this selected admins only)