Three stories I have been following, all variants of Godzilla-threshold situations where a villain shows up but might turn out to be a better ruler than the people they depose.
Rebel Against the Night: A Code Geass crossover. When Luna gets hit with the broad-spectrum frienship beam, Nightmare Moon is spit off into a separate creature and sent to another world. Shocked at the rampant violence and hatred of this world, she sets out to turn it into something closer to harmonious Equestria, which includes reshaping the ugly-ape natives into more pleasing and familiar forms. Keep in mind she's still a mad goddess and has no inclination to be nice or gentle about this. Meanwhile the natives still have their old hatreds and conflicts, with new problems and divisions on top of that, and the major Code Geass players still pursue their objectives with no idea of the magnitue of the Outside Context Problem that has just fallen upon them.
Shinji's Nightmare: As above, but she goes to the NGE and her attentions and alterations are primarily directed at Shinji. Materal gets posted to Spacebattles before it goes on other sites.
A Dream of Dawn: The friendship beam doesn't quite work, the Nightmare rules over eternal night, and Equestria slowly withers away under frost and famine. With no way to defeat the Madmare of the Moon or recover Celestia, the little ponies must turn to...Discord.
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No, I don't believe the world has gone mad. In order for it to go mad it would need to have been sane at some point.
Rebel Against the Night: A Code Geass crossover. When Luna gets hit with the broad-spectrum frienship beam, Nightmare Moon is spit off into a separate creature and sent to another world. Shocked at the rampant violence and hatred of this world, she sets out to turn it into something closer to harmonious Equestria, which includes reshaping the ugly-ape natives into more pleasing and familiar forms. Keep in mind she's still a mad goddess and has no inclination to be nice or gentle about this. Meanwhile the natives still have their old hatreds and conflicts, with new problems and divisions on top of that, and the major Code Geass players still pursue their objectives with no idea of the magnitue of the Outside Context Problem that has just fallen upon them.
Shinji's Nightmare: As above, but she goes to the NGE and her attentions and alterations are primarily directed at Shinji. Materal gets posted to Spacebattles before it goes on other sites.
A Dream of Dawn: The friendship beam doesn't quite work, the Nightmare rules over eternal night, and Equestria slowly withers away under frost and famine. With no way to defeat the Madmare of the Moon or recover Celestia, the little ponies must turn to...Discord.
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No, I don't believe the world has gone mad. In order for it to go mad it would need to have been sane at some point.