I like some of the details of this challenge and is tempting to try out.
I don't want to delete my island right now though and some details of the challenge I don't care for.
However, if I still feel tempted to try out a challenge, I told myself I'll delete my island in spring. (I feel like that's the best time to start a new island anyway because you have more creatures to catch than in winter.) And I'll write my own challenge rules. I already started writing some like, limits on non native fruits, limits on flowers, no terraforming, having to acquire a photo before any villager leaves, and having to feed yourself and villagers daily, and can't donate to blathers until 5 star status, as a start. I just want something fun and a different way to try to play the game. I would also want to focus more on the villagers instead of fussing with the cursed terraforming crap again...