I have a friend who contacted Curious Labs about this thing. According to the friend, Curious Labs did in fact put the serial number checker to check wether or not there were more than one instance of the same serial number in use at the same time (provided more than one user is on the internet when using the program). Still waiting on more info promised. They also said they are looking into any problems that it may be causing but haven't found any "problem" so far. Well I for one sure do have a "problem" with it since I wasn't told the truth up front.