I've noticed Discord has gotten what is known as Ron the Death Eater, while he did mess up worse than ever and he should have definitely thought things through if not completely not have went through with this plan at all, he was still truly trying to help Twilight in his own way and was making an effort to be a good friend whether one likes the methods he went for or not. While a spirit of chaos who doesn't often follow rule and order he does care this can be shown by how he bows to twilight when Princess Celestia states that she has proven even more than ever that she is truly ready.