The employee has responded to all other questions that don't touch on the specifics of their fraud detection algo. After those responses it sounds like they ha

The employee has responded to all other questions that don't touch on the specifics of their fraud detection algo. After those responses it sounds like they have a behavioral threshold that looks something like: "x number of videos that include an external link or html that have been created or updated within x period of time for a specific account or ip address", where the limits are probably much tighter on the free accounts.