The base commodities usage has been revised, in short the updated behaviour is:
Players cannot dock at bases if the shield is up
Thank you Canon.
You have killed unconcealed player bases.
It has always been my most firm belief that bases should be allowed to be disabled just like tradelanes. Let's let pirates blow up planets next. Why not?
Pansies trying to flee to bases should really be just left hanging outside the doors of their castle to be shot to pieces. And pay through their nose for the priviledge of owning the casle which refuses to be a safe haven in case of an attack. Yes.