I love how your reasoned arguments are tearing him apart lol. The shit you say makes more sense. Here's my thoughts, traveler is not evil or the darkness, why? Because it sacrificed itself for us, it stopped the vex turning all our planets into machines, it stuck with us throughout every dark day. The hive were performing rituals on a shard of it draining it's light. The vex worshiped the heart to stop the traveler from regenerating itself. So why would it, if it is evil or the darkness have its armies detriment it in so many ways? Answer, it's good, and the reason the darkness pursues it is because it wishes to stamp out the "[b]light[/b] of creation. Which the traveler effectively is, all it does is create.