The people on this thread who are advocating, and even admitting to, combat logging need a reality check. If you look at this
page you will notice that the game is explicitly advertised as a PvP game, the line "or just hunt other Commanders" is clear evidence that FDev intend for commanders to be able to engage and kill each other. FDev have also made it clear that combat logging is an exploit and so people who do that are cheaters and ought to be banned. FDev usually have pretty good community relations but on this occasion they have dropped the ball.
The sense of entitlement that some of the posters are displaying is breathtaking, yes people can kill you and yes you may not know why. This does not make them a real life sociopath. For instance, people who are complaining that someone may kill them when they are carrying a load of exploration data are failing to consider that there may be a good gameplay reason for them doing so. The Cmdr who killed them may have been working the BGS in that system by undermining the controlling faction and want to stop players from cashing their exploration data in as that will give the controlling faction a boost.
People who combat log are preventing this and other entirely legitimate types of game play (e.g. piracy). This will only hurt the game in the long run.