I keep joining random groups for.infernal hordes. I will use my keys for the group only to be kicked out of the group mid horde and I lose my key with no rewards. This should not be an option if your key was used to initiate the horde.
This happens because I will choose a modifier that people do not agree with even if it will actually benefit to gaining more aether. The best way I think to fix this is to lock out the group until the horde is completed or failed. Either that or whoever initiates the horde also gains party leader to avoid losing their keys.
Keep in mind that mythic keys are becoming a thing and with the rarity of those, its wrong if someone can get kicked from.a group if they use their mythic keys.