does shooting down enemy npcs in your home system make a difference? I keep getting interdicted while doing delivery missions and I've made a point to shoot them down when I see them while in my combat vessel, anything happen long term?
It could have an effect on the BGS. If you are shooting down unwanted ships, it might be lowering system security and sending your home system into lockdown. Not sure if shooting PP ships has the same impact as regular ships though.
It used to, which resulted in grind spots constantly swapping governments without end. Like Lugh with 15 billion citizens changing governments every single week, but now PowerPlay ships no longer affect the BGS.