I think there's a teleport there once this message is on, and I think it leads to "I'm not sure anyone believes it?" and perhaps one other destination.
I hypothetise the teleportation happens once you step onto the red conveyors, when the message is on.
I have just tried checking this out (after deciphring the first part of the puzzle after giving it some thought after Ian's penultimate set of clues, without reading the solution), but I'm not sure what turns the message on. I thought it was collecting all of the items in this room, but apparently not, it must be something else (or something else in addition to the collection of items).
EDIT: I've just checked, using my test RZX recording, with the message on. Teleportation doesn't happen...
- IRF likes this