It was about Onlyfans, Snapchat, Twitter and other such sites.
https://www.bbc.co.uk/iplayer/episod...1nh/nudes4sale
It gives an accurate picture of what the site earns and how many models are getting a living and how many aren't.
$400,000,000 spread around 150,000 models isn't a great deal par model. Top earners are in the $30,000+ category and only 0.06% of all subscribers.
The program then went on to focus on how lax they were at verifying the age of models. It also exposed sites like Snapchat and Twitter.
If you want to catch the whole thing you'll have to search for it on a Torrent Site.