that's the same for Rumple, he takes something for the wishes he grants. The difference between Rumple + Silver Swirl and Kyubey is that they have emotions, loved ones etc while Kyubey has no emotions and doesn't cares for the death of others.
i've seen the tumblr......and it doesn't make sense,Princess Sliver Swirl ruined the elements of harmony,and she smiled at that.....she ruined friendships and make trixie lone as ever....i'm confused....VERY....what was Twilight's wish?