I don't love her very much, but I also don't have anything against her. I'll say "I like her" But I admit that Lighting Dust it's the embodiment of all the bad qualities of character Rainbow Dash. It's like if Rainbow Dash would be more "Rainbow Dashed" than she really is. Rainbow proved to us (and to her haters) that she's better, and she's more kind than it looks like, especially in comparing with Lighting Dust. Simply - Lighting Dust was created for showing that Rainbow isn't so selfish as we usually thought. So we can't judge Lighting Dust. By the way I like her name. Best name for one-episode-character. Lighting Dust... Yeah.