It would certainly be nice if they had some system to allow you to at least tag a node when you attack the mobs defending it. They seem to intentionally put mob spawns near resources and chests, yet if you put the effort into defeating the defenders, your likely not going to be the one to get the rewards if your in an area with any sort of other players in it. I don't see it happening, but tying those mobs to the node would be ideal. I beat the mobs, that becomes my node / chest.. at least for X seconds after the mobs have been defeated.