


The genius of the SMILE fruit, narratively, was that by liberating Wano, Luffy metaphorically cured the sufferers by making their country a place to be happy.
Its not an actual cure, which could be within the realm of possibilities… I could very well see Vegapunk spend their future efforts righting the wrongs of MADS, and the World Government. Including the SMILE fruits, and Kuma, but thats a whole other topic.
Luffy created an environment where the forced smiles of these people are no longer some twisted irony, but a representation of how they now feel, happy and free to celebrate or mourn.
I guess thats it thanks