“we store more than 230 Petabytes of data in Amazon S3, with our single largest S3 bucket coming in at a whopping 45 Petabytes” How did they get so much data?!

“we store more than 230 Petabytes of data in Amazon S3, with our single largest S3 bucket coming in at a whopping 45 Petabytes” How did they get so much data?! They say they only have 75 million stock photos. They must have tens of petabytes that are just dark.