I think it's just his character. He's a pure soul- I don't think he's necessarily special in that regard- I think children in general are able to see korok's/kokiri, but someone else of a pure soul could also see them- we just haven't encountered such a person yet. >>67822661
One of the Daedra (gods that didn't help during creation) consumed Trinimac an Elven God, and what came out, and what came out was Malacath. His followers then became Orcs and were shunned. Malacath is also a Daedra, in that he didn't help with creation because he wasn't around back then- Trinimac was. His domain are the shunned and strength- he encourages his followers to be strong and self-sufficient, and guards them jealously- though I don't think he bears much ill-will to 'city-orcs'. He's also incredibly touchy about the thing where he got eaten, so don't bring it up to him, or he will drop you in a den full of ogres naked.