Yeah sub-space comms or what ever can explain it away. I know a lot of people have concerns about the speed of travel within systems, in Frontier, because it took days to get anywhere pirates could attack you safe in the knowledge that if you called for help nobody would come. Since there's no time acceleration anymore, you could call for help and the police turn up in a matter of 30s or so. Whether they allow say comms suppresion upgrades or something like that or not I don't know. Police turning up, at least in core systems might be a good way to deal with griefers. Of course out in the less stable systems you might be on your own, or worse, calling for help might just attract more pirates!