fe.settings:getUserBoardSettings - non array given[miku] - Endchan Magrathea
That's the Eye of Sauron. You can see new posts from all the boards in live update.
End should have real time posting too but I think it was disabled to lessen the load. With that you can see how many visitors are on the board (well the board and the threads in how many tabs are opened) and you can see if someone types something.