Just a thought, would it make sense to have a set of badges for killing NPCs? The rewards would be pretty standard modules, but their bonus doubles against NPCs (maybe Dranik cannons, thrusters, etc?). The badges could be quite common (every NPC kill), or very hard to get hold of (eg getting the killing hit on an elite/boss NPC). Any thoughts?

lol i suggested this the day badges came out. the general consensus was that badges are supposed to encourage player vs player combat, and npc badges would discourage that.

i think badges for bosses and elites would be amazing . maybe a badge for disabling the boss/elite or doing the most damage?
as for NPC general badges i have to say no. they would be just to common. sorry

As I said, they could be common (every NPC) or rare (killing hit/most damage against a boss).

well if it was every NPC have the module cost like 1000 badges