This seems like a good initiative, but makes me wonder, isn't there a risk these cats will end up overeating when endless Internet-people click the feed-button?
A vet once told me that male orange cats can become food-obsessed, and my entire experience with cats agrees with that. One orange male that needs to be food restricted, while every other cat I know doesn't.
I've also seen non-orange fatties. At least other tabbies have to chonk potential. It's probably more of an individual thing (but some breed might be more prone to overeating than others) just like with humans.