During the alpha and beta, the exotic primaries did elemental damage. Thorn and bad juju were void, for example. At game release, Bungie removed elemental damage and made all exotic primaries except for raid ones kinetic. This makes exotic primaries nearly useless in nightfalls with burns and enemies with different types of shields. Who wants to use hawkmoon and thorn when a fatebringer or word of crota does triple the damage in 1 bullet? Because we can only hold one exotic, almost nobody uses exotic primaries in nightfall. This should not be the case. Hawkmoon, thorn, suros, mida, bad juju, red death etc are all great guns with some very useful perks, but are overshadowed by legendary raid primaries due to elemental damage. Choosing to use one of these guns will gimp out your damage. I propose that Bungie return all original elemental damage types to each exotic primary. This way, these great weapons will no longer be limited to pvp or the odd useful moment in a raid.