I wasn't expecting it to work, but I didn't uninstall the app just in case Reddit backtracks or something. I checked and my front-page loads like normal. Does that mean that Reddit gave up? I didn't pay infinity at all...
I think the developer is temporarily funding use of Reddit's API until he gets the update ready for the subscription only version of the app. Not sure how long that will take.
Oh, if that's the case, I will be sure to uninstall the app; I wouldn't want her to be financially burdened now by someone like me who has no intention of paying for the service in the future.