If a user is banned on their home instance, that ban is federated out to all instances. If a user is banned on a remote instance, they’re just banned locally on that instance, and their account remains active for all other instances.
They’re likely some remote users who have interacted enough with your instance to be federated over, and then banned on their home instance.
windows can still play castle of the winds? i play it all the time. In fact, i just booted it up again a moment ago to make sure it didnt break recently or something. I dont remember ever having any issues playing it, and ive played it off and on for decades. In fact, googling real quick, it looks like my abandonware even has a “easy installer” for it.