Hi again,
Browsing around a little more, it seems like the problem of defunct KFCs still being in AllThePlaces that I pointed out in https://www.openstreetmap.org/changeset/152662539 is a general one. I pretty quickly found at least two more that appear to be permanently closed: https://www.openstreetmap.org/node/11980218990 and https://www.openstreetmap.org/node/11980210168. They are both also listed as closed 24/7 on the provided websites, maybe that's something the challenge can check for?

Best,
Will