extremely simple: dev makes store page, dev sells game, dev deletes everything = red flag
dev makes store page, dev sells game, dev deletes all downloads, dev uploads nothing in a reasonable time ex. 5 days = red flag that can be removed by restoring downloads
dev makes store page selecting "comes with steam key option", steam store page with "upcoming" status linked, game released on steam, 2 weeks pass, no keys have been added to itch.io key dispenser for valid purchases = red flag that can be removed by adding the keys sold
all the variables already exist for the store to work such as sales tracking, whether the DL page exists, whether the DL page is empty, etc.