My friend said the Hunter wasnt melkor read on

Ok im the friend, theres a couple things wrong with what he wrote ill just re-write it. (the quote is right) ok here i go. The reason i say the hunter wasn't melkor was because the elves said that they saw "shadowy shapes" around the top of cuivein (don't know how to spell). But in this time Melkor didn't travel in shadowy shapes he travled in fair or terrible shapes like a black knight or what you see at the first of the LotR movies. My theory about the hunter is there is more then one. More like 4-5. We all know there was more Ainur then was spoken about they lived where ever Illuvatar lived. What if there was more then one evil Ainur? What if more turned evil when the Vala left for middle earth? What if Illuvatar kicked them out into middle earth as shadows of their former selves, "Shadowy Shapes" as the elves said. Why should melkor go and get the elves himself when he had more important matters? Why not get evil spirits, spirits of malice to do it? He never does anything himself, the only thing he ever did was fight fingolfin and knock down the pillars of light. And thats why i don't think the hunter was Melkor.