Its implied when you play the game that combat is a part of it. Indeed, the game has a ranking system based upon mass murder, where we pilot ever increasingly heavily armed spaceships. To this end its hard to understand why folks go out of their way to only play as a non-combatant. Thats a choice of course but expecting others to not shoot at you is baffling particuarly when the game is set in a
cutthroat galaxy, set against a backdrop of raw anarchy and powerplays.
As for the purpose, its largely the only thing that gives meaning to a style of play. The NPCs are just bots and destroying them is a means to an end, its certainly not a rewarding or challenging experience. Its also a multiplayer game and conflict between players creates for an interesting dynamism and spontaneity that the NPCs don't offer. Frontier have sadly gone out of their way to remove meaningful player adversity from the game as much as they can without actually making it impossible. Many of the guys from SDC used to try and be pirates but the game makes that impossible, and with solo and pg theres no need to folks to require escorts for there trade journey, and no eco system for players to become player bounty hunters. Instead its just full on hatred towards anyone who shoots at someone else.
DB on his anti griefer crusade has ironically created players who are disaffecetd, have been battered with years of verbal abuse and mudslnging which has maligned their style of play, and them personally. Imagine, if you as an explorer recieved constant abuse because of how you were playing the game. Every time you looked at the forums there was a thread on how
you were killing the game, so on and so forth. This has created a lot of resentment. I've no doubt it plays its part in some motivation.
Nevertheless there is a short story you should read that was linked to me on reddit. I happen to think its an excellent and amusing read, but it shows how one experience can be interpreted in totally different ways, and I think it might be the nub of the endless conflict here over the game:
The Veil of Madness, really loved reading this:
That all said bud, its a cutthroat galaxy.. What do you expect? Flowers and a big hug? I tend to save that for my girlfriend.