> an data expert could have recognized the fake user profiles through the fact he has seen e.g., how messy real data is, know the demographics of would be users

> an data expert could have recognized the fake user profiles through the fact he has seen e.g., how messy real data is, know the demographics of would be users of a service like Frank (wealthy, time stressed families), know tell tale signs of fake data perhaps the data science professor who generated the fake data was quite well versed in all this and put effort into deliberately adding messiness and skew etc?