I'm still not sure why people think these chains of stations will remain a single line of stations for very long, every system settled becomes the center of a bubble of possible new colonies, and groups wanting to expand their faction can use this corridor as a method of increasing the size of the faction, whereas a colony way out in the black isn't going to do anything useful at all as far as the BGS and PP is concerned. The other thing is, why are you even worried about them, if that's what players want to do, just let them, they don't affect you, they don't harm you, they don't cause a negative impact on your gameplay, the only thing I can see here is that because you don't like it you want to stop other people doing it, and that is simply not the way to play the game!