Wait wait wait, according to some forum members Mobius is more populated than OPEN, and open is a desert.
Interesting...
It is at times. Did one of the Aegis CGs about a month ago. After seeing nobody in open for an hour I switched to Mobius and joined the traffic jam at the drop off station. Kept switching back and forth every hour or 2 and it stayed the same all the way through it.
Some of that would have been instancing but other than 1 other Cmdr hauling goods in with a Cutter open might as well have been solo for me on that one.
For random travel rather than an obvious choke point, I do find open busier though. But it’s still a big empty galaxy generally in any mode.