[bluefirebrand]

My guess is that there is no "slowly introducing" anything.

It just sees that content made by sex workers is popular and puts it in your feed.

[posterboy]

The point of the original poster was that those videos have zero views or low rating - not popular by any means - and they appear out of place in the stream.

Youtube does it too, and my best guess is that it is a form of supervised training and the real question is who's being trained.