Hello,
The "who is viewing this forum" option does not seem to work. I've tested this, and other people will be viewing a specific node yet it will only show that I'm viewing this node. All usergroups have the same permissions.
Also, I have a secret node for staff that is hidden. The threads in this node will show that non-staff members are viewing that thread. They don't have the permissions to view and when I click their profile, they are viewing a completely different thread.