That is what I mentioned in another post that was deleted. Scraping sites only detect images or videos that are one link deep. If files are uploaded into an album and only the link to the album is shared, those sites cannot see them. It also helps that the system for detecting excessive activity has been improved, which has reduced the frequency with which those pages are updated. Furthermore, since new user registrations have been disabled for several months, it is possible that she does not have access to this site, even if she is aware of its existence.
Some claim that she keeps an eye on this site, but I am skeptical. It seems that the individuals who do not want the photos or videos to be shared are the original leaker and some of the users with whom the content was shared.
In any case, identifying the people who are sharing her content should not be difficult, unless, of course, she sold the same sets to multiple people. The real question is whether she actually cares that her content is being shared.